Entei

Entei (Japanese: エンテイ Entei) was a shinobi born in the outskirts of Amegakure and the former apprentice of Hanzō. Entei was "blessed" with natural talent for ninjutsu, and quickly caught the attention of Hanzō, who then took Entei under his wing and became Entei's mentor and role model.

Background
Entei was born in the outskirts of Amegakure, and had loving parents, who despite their poor lifestyle, always did their best to give Entei a happy childhood. One day, however, Missing-nin who were roaming by invaded Entei's house looking for supplies, and took the lives of Entei's parents when they tried to escape from the house. They tried to finish off Entei, but Entei killed them with a powerful Lightning Release jutsu, much to Entei's own surprise. Amegakure's Village Head, Hanzō witnessed the events and took Entei under his wing, as he saw Entei as a valuable weapon for his arsenal. Entei quickly came to see Hanzō as a father-figure, despite Hanzō being strict and showing no love or compassion for Entei whatsoever. Entei also became ruthless towards those who opposed Hanzō, showing no remorse or mercy for them when Hanzō ordered assassination hits on them.

Personality
During his childhood, Entei was a kind-hearted, happy and loving child, always showing respect towards his parents and anyone he encountered, and desired to one day become someone important to give his parents the "perfect retirement". After his parents were brutally murdered in front of him, Entei's personality took on a drastic and darker turn: He no longer was happy and kind-hearted, and instead, became calm, serious, focused and cold-hearted, showing no remorse or mercy for his enemies, despite them begging for their lives, although this change was mostly caused by Hanzō, whom became Entei's mentor after his parents' deaths.

Hanzō manipulated Entei by telling how the Five Great Shinobi Countries were the ones to blame for his parents' deaths and how Amegakure needed to rule the world in order for "peace" to be achieved. Hanzō was the only person Entei came to trust, and saw him as a father-figure, despite Hanzō's cold personality towards Entei himself. After Entei was betrayed by Hanzō due to the fear of Entei one day taking his place as Village Head, Entei nearly suffered a mental breakdown, asking himself why he existed and what was the point of being alive, but quickly recovered as he challenged and successfully murdered Hanzō, and assumed the position of Village Head of Amegakure and continued Hanzō's work of trying to establish Amegakure as a major nation.

As Village Head, Entei was completely cold towards the villagers, openly announcing that anyone who desobeyed his orders would be executed in front of the entire village. Entei's tyrant rule ultimately caused the villagers to attempt a coup d'état and overthrew Entei as leader of the village and had him defect from Amegakure, with Entei swearing vengeance on them.

One of Entei's most notable traits is his love for fighting, always prolonging his battle in order to enjoy them as much as possible, and always wandered around during his missing-nin days looking for opponents stronger than him to battle. Entei was also never arrogant of his own power, and always showed his opponents the proper respect they deserved if their power matched his. However, if an opponent was not able to stand Entei's power, Entei would declare them "unworthy" of being a shinobi and quickly slaughter them out of disappointment. After meeting and battling against Minato Namikaze, Entei obtained great respect for Minato, declaring him the strongest opponent he'd ever faced, and would gladly accept Minato's challenge for battles. Although later on his life, Entei became extremely arrogant of his power, since he'd been defeating numerous shinobi from other villages and single-handedly declared war on Konoha and launched an attack on the village in order to destroy it, although he gladly postpone his plan in order to fight Minato, who challenged him to a battle.

During his days as a missing-nin, Entei became completely and extremely cold and vicious, turning on the comrades he made throughout his journey the instant they no longer had any further use to him. Entei would gain these comrades by manipulating them, faking sharing the same goals as them and the moment they outlived their usefulness, Entei would (literally) stab them in the back and reveal his true nature, mocking them for "being too soft" and humiliated them by stepping on their dead bodies after killing them. Entei's cold personality became known throughout the Shinobi World, which earned him the nickname Cold-Blooded Entei (冷血カカシ, Reiketsu Entei).

One thing that Entei prided himself with was his name, and claimed that his name represented the "fire" in his heart, and swore to one day have the entire Shinobi World remember his name in the history books. Entei would go on to great lengths to have others know his name, such as slaughtering an entire small village, while leaving only one survivor in order to tell the tale and warn others of his name, while ambushing and killing shinobis from the Five Great Shinobi Villages. Entei also showed pure hatred and resentment for Konohagakure as their shinobi were responsible for his parents' deaths, and vowed to one day burn the village to the ground, although he praised the village for "creating" a powerful shinobi and rival in Minato.

Entei later became a sadistic person, laughing at the deaths and suffering of the innocent people of Konoha as they screamed and ran for their lives, while openly admitting his sadistic-self, claiming he "loved to hate others". Entei showed pure hatred towards the Hokage Hiruzen Sarutobi, blaming him for the deaths of his parents because he couldn't "control" the shinobi from his village and caused them to defect the village and ultimately take the lives of his parents, and vowed to kill everyone Hiruzen cared about in order to have him experience the loss of a loved one before killing him. In his final moments, Entei declared himself a "divine existence" and claimed his name would remain in history alongside the likes of Madara Uchiha and the Sage of the Six Paths, before dying with a laugh at the thought of leaving his mark on the Shinobi World.

Appearance
As a child, Entei had black eyes and short, spiky, black hair. In his childhood, Entei wore a plain dark-purple shirt, blue shorts and black shinobi sandals. During his teenage years and heading into his young adult days, Entei wore a black cloak with purple lines on the front and on his hood. He also wore black gloves, black pants and black sandals. His most notable attire is his plain white mask with two eye-holes, but the mask is later destroyed during his assault on Konoha, which was proved as he killed two missing-nin during his early age with a powerful Lightning Release ninjutsu without even thinking, and expressing his shock afterwards.

After being trained by Hanzō, Entei's skills vastly improved, being able to successfully complete S-rank missions during his first few months as a shinobi, and effortless killed many Jōnin from other villages as a teenager. His power caused Hanzō to betray him out of fear of one day taking over his position and marked his assassination, but Entei was not only able to survive the ambush, but later successfully kill Hanzō for betraying him. After defecting from Amegakure, Entei's feats and power reached the Five Great Shinobi Countries, with the villages warning their forces to keep on watch for Entei and if they ever encountered him, they should retreat immediately as they assumed that since Entei was able to kill Hanzō, they needed to be careful on Entei's presence.

Chakra and Physical Prowess
By his own admission, Entei's chakra reserves are unexplicably large. With his charka reserve, Entei is able to use numerous high-level ninjutsu numerous time per day without feeling exhaustion or the effects of chakra loss. His large chakra reserves also allowed to fight nonstop for long periods of time before getting tired, and his advanced skills caused to rarely sweat from his battles, and whenever he started to sweat, he saw it as a sign that his opponent was worth fighting. Although he primarily used taijutsu, Entei was incredibly skilled in ninjutsu, being able to perform many high-level ninjutsu. During his assault on Konoha, Entei was able to withstand attacks from hundreds of shinobi, disarming and dodging attacks from many directions. Entei is also able to use the Eight Gates technique, although he rarely uses it as he feels it's "too overpowered and less fun". Entei also proved himself to be greatly skilled in Bukijutsu, being able to use many different weapons, such as giant shuriken, swords and chains with weights. He also showed to have knowledge in Fūinjutsu.

Ninjutsu
Entei primarily relies on his great skill and knowledge of ninjutsu. As a child, he showed advanced ninjutsu prowess before even becoming a shinobi. Over the years, Entei learned more techniques and different nature-types of ninjutsu. After battling against Minato Namikaze numerous times, Entei copied one of Minato's trademark techniques, the Rasengan, and created his own version of the technique, which Entei dubbed Dark Rasengan (冥遁, Meiton Rasengan), as instead of the usual blue, Entei's Dark Rasengan is black.

Nature Transformation
Entei can use three different nature transformation, them being Fire Release, Water Release and Lightning Release. Entei's vast knowledge in Water Release allows him to use Water Release techniques without a nearby water source, being able to produce massive torrents, water dragons or defensive walls. Despite not being from the Land of Fire, Entei is incredibly talented in Fire Release techniques, being able to produce a massive wall of flames and giant fireballs which were capable of destroying entire small villages with one blow.

Entei's natural affinity is for Lightning Release, which he describes as "the most powerful nature transformation" in the world. With his water and lightning nature-types, Entei is capable of using Storm Release, although Entei only used it once as he felt that Storm Release "wasn't that great". By mixing Fire and Water Releases, Entei is able to perform Boil Release techniques, which proved to be very useful in Entei's arsenal, and he eventually learned how to use the Boil Release Chakra Mode, which Entei declared as one of his most powerful and reliable abilities.

Senjutsu
Entei's large chakra reserves enabled him to learn senjutsu, enhancing his techniques and physical parameters by entering Sage Mode. He could perfectly balance the natural energy with his chakra, displaying only the orange pigmentation around his eyes — the true marking of a Sage. Although he was very experienced in it, Entei rarely used it in battle, and mostly used it to sense his opponents who were in great distances.

Intelligence
From Hanzō, Entei learned much about the shinobi world and different abilities from other shinobi nations. Because of this, it was very hard to surprise Entei in combat because of his vast knowledge of different abilities from each of the five great nations. Whenever Entei witnessed a technique he'd never seen before, he would praise the user and ask them about the technique. Entei's years of experience on the battlefield caused him to rarely get caught by surprise by strategies and plans created by his enemies as Entei already knew tactics ninja from certain villages were likely to use, what weaknesses to take advantage of in different opponents, and how to counter most jutsu.

The Betrayal
Entei had been working for Hanzō of Amegakure for several years since his parents' deaths and proved himself to be a valuable weapon in Amegakure's arsenal. However, Hanzō began to grow worried of Entei's quickly growing skills, fearing that one day he would try to take his place as Village Head of Amegakure. Despite claiming it would be a big loss for Amegakure, Hanzō prepared to have Entei assassinated and assigned him to a "mission", which would require Entei to travel to the outskirts of the village to check on "suspicious figures". When Entei arrived at the location, he was surprised to see dozens of Hanzō's guards surrounding him and quickly assumed they were betraying Hanzō. Entei, however, was shocked to hear that Hanzō had ordered his assassination and initially refused to believe Hanzō would betray him, but quickly accepted the truth after Hanzō's guards charged at him. Entei was able to withstand the assault, countering with his Lightning Release: Electromagnetic Murder technique, before finishing them off with his Water Release: Water Dragon Bullet Technique. Entei then suffered a minor mental breakdown after the battle, but quickly recomposed himself and vowed to question Hanzō on his reasons for his betrayal.

Knowing that Hanzō assumed him dead and he was no longer welcomed in the village, Entei successfully infiltrated back into the village by swimming deep underwater and after re-emerging, he silently killed a guard who was about to expose him. Entei then made his way up to Hanzō's room, where he surprised Hanzō by throwing his sword onto his hand. Entei questioned Hanzō about his betrayal, and Hanzō explained his reasons, saying he feared that Entei would try and dethrown him out of his position, and despite Entei assuring him he would never do it, Hanzō refused to believe him and summoned dozens of shinobi to deal with Entei, but Entei effortlessly killed them with a powerful Lightning Release: Thunderbolt technique. Entei then expressed his pure hatred at Hanzō's betrayal and declared he would murder him, but Hanzō immediately performed a Summoning Technique and summoned his salamander, Ibuse. Entei and Hanzō made it's way to the lower levels of Amegakure, with both of them causing massive destruction with their attacks. Entei launched his Lightning Release: Thunderbolt technique towards Hanzō and Ibuse, who managed to dodge it, and countered it with a poison gas, but Entei blocked it with his Water Release: Wild Water Wave.

The battle eventually reached the sea surrounding Amegakure, where Entei taunted Hanzō about being his resting place, but Hanzō claimed once he finished him off, he would study his body and learn the secrets behind his natural talent. Entei successfully knocked Ibuse out of the battle, leaving Hanzō and Entei to battle alone. As both of them were almost out of chakra after a 4-hour battle, Entei and Hanzō resorted using hand-to-hand combat, with Entei knocking out Hanzō's respirator, but that proved to be a mistake, which allowed Hanzō to release his poison towards Entei. As Hanzō declared himself the winner of the battle, he was caught by surprise by Entei, who attacked him from behind with his Lightning Release: Electromagnetic Murder and the Entei that was poisoned was revealed to be a Shadow Clone created by Entei's Lightning Release Shadow Clone technique. As Hanzō laid down in the rain in the water, he warned Entei that if he killed him, Amegakure would be destroyed without his leadership, but Entei taunted Hanzō one last time, saying he would become the new Village Head and lead Amegakure to new hights, before finally killing Hanzō by stabbing him through the heart with his sword. As Entei stared down at Hanzō's corpse, he wondered what to do with his corpse as others might try to study his body, and decided to bury Hanzō's body down deep in the sea so his body could never be obtained.

Rulling Amegakure
After the battle, Entei climbed to the tallest building in Amegakure and used his remaining chakra to speak with the entire village. As the villagers looked up and wondered what was happening, Entei announced Hanzō's death, which shocked the villagers, and caused a few of them to refuse to believe that Hanzō had died. Entei then announced he was the new Village Head of Amegakure, and coldly stated that his rules were to be followed without exception, and anyone who defied his orders would be executed in front of everyone out of humiliation, and declared the "new age of Amegakure". Three months later, Amegakure in the middle of reconstruction after the massive battle, with Entei overlooking the reconstruction, while paying attention to some Amegakure shinobi who were beginning to feel "chained" by Entei's tyrant-type leadership. In order to prove he was serious about his new rules, Entei had these shinobi hanged in front of all the villagers, and sarcastically asked them if they still believed Hanzō wasn't dead. This caused the villagers to fear Entei and refused to speak about him, referring to him only as "The Lord". The villagers soon became more and more frustrated with Entei's leadership, as Entei not allowed anyone to wander around the village after 9PM and refused the villagers to leave the village for vacations or business trips. This caused the villagers and fellow shinobi who looked up to Hanzō plan a coup d'état in order to remove Entei out of power. Entei quickly learned about this and confronted the conspirators, but became surprised to see all of the villagers and shinobi from Amegakure as the conspirators. Entei thought to himself if he killed all of them, Amegakure would cease to exist as there would be no villagers or ninja, and reluncantly abandoned the village, but not before killing dozens of ninja and several villagers, including innocent children who had nothing to do with the situation, with caused the villagers to recklessly charge at Entei. After reaching the outskirts of the village, Entei looked back the village and swore revenge on them before walking away.

A Journey Around the World
After abandoning Amegakure, Entei became a missing-nin and wandered around the world. Entei soon desired to have the entire Shinobi World know his name and began performing multiple crimes, such as attacking a small village and killing all of it's villagers before destroying the village with his Fire Release: Great Fireball Technique. Entei continued to commit crimes throughout the next three years, and this caused the Five Great Shinobi Countries to become aware of his actions and had their ninja be careful if they ever encountered Entei. After completing his 22nd birthday, Entei decided to head to the Land of Fire, and when he arrived, Entei met Minato Namikaze, who told him he'd knew about his reputation and couldn't allow him to roam around free without paying for his actions. Entei claimed he would kill Minato and everyone he cared about before charging at him with his sword, but was caught off guard by Minato's Flying Thunder God Technique. Minato then successfully hit Entei with his Rasengan technique, but proved to cause only minimal damage to Entei. Entei, who was impressed with the technique, asked Minato about the technique. After explaining it, Minato was shocked to see Entei successfully perform the Rasengan without effort, and noticed that Entei's Rasengan was different than his. Entei confirmed it and named it "Dark Rasengan" as it was black, instead of the usual blue color, while also having a different noise due to the "dark chakra" that Entei had put in it. Entei and Minato collided with their respective Rasengan's, which devastated the area which they were battling, and became a wasteland. Entei then launched his Fire Release: Dragon Fire Technique, but Minato countered it with his Flying Thunder God Technique, but Entei assumed Minato would use it, and scratched Minato's face with his shuriken. After battling for nearly two hours, Minato stated that the battle would eventually kill both of them and retreated, but not before Entei warned him they would meet again, and declared Minato as the strongest opponent he'd ever faced. Entei then headed to a cave in a nearby mountain, where he recovered from the injuries he suffered during his battle with Minato, and showed his respect for Minato, and expressed excitement at the thought of battling Minato again, before losing consciousness.

Entei woke up two days later and soon went out for supplies at a nearby village. Upon arriving, Entei invaded a store, killing the owners, before stealing most of the food and water in the store and fled to a nearby forest to eat and regain his energy. After finishing his food, Entei returned to the village to finish his assault and successfully destroyed it with his Great Fireball Technique, and looked on as the villagers screamed as they were burned alive by the fire, and Entei walked away as the screams quickly grew smaller, and cracked a smile while leaving. The news of the attack reached Konoha, and Hiruzen Sarutobi immediately assumed it was Entei, and sent a squad of Anbu to deal with Entei. Entei was ambushed by the squad a few hours later, but the Anbu proved to be no match for Entei, as he quickly killed them all using only taijutsu. Minato suddenly appeared before him, shocking Entei, who asked how he had found him. Minato revealed he had placed a marker on Entei's back during their battle and he couse use his Space–Time Ninjutsu to teleport himself to places he had marked. Entei praised Minato for his intelligence and engaged him in battle once again. Entei demonstrated his new technique, the Boil Release Chakra Mode, which he used to charge at Minato, but Minato was able to avoid the attack by using the Shadow Clone Technique and had his clones take the hit instead of him. The mode proved to be too much for Entei at the moment as he became exhausted minutes later and the mode ran out, but Entei quickly recovered and attacked Minato with his Water Release: Wild Water Wave, which hit Minato and caused great damage. Minato then teleported himself above Entei and hit him with his Rasengan, which caused great damage since Entei was tired from using his Boil Release Chakra Mode. While bleeding heavily, Entei began to laugh and expressed pure excitement at the battle and declared Minato his rival, before fleeing from the battle by using Storm Release: Laser Circus. Minato decided to retreat as well, feeling that if he teleported himself to Entei, he would be killed due to his exhaustion and decided to rest for their next battle.

End of the Line
Entei quickly recovered from the battle and instead waiting for Minato to approach him, Entei decided to launch an assault on Konoha, wanting revenge on them for causing their parents' deaths as the missing-nin who killed them were originally from Konoha. Entei infiltrated the village by silently killing two guards at the South Gate, before reaching the top of the Hokage Rock, and looked down on the village and felt fired up by being at Minato's hometown and tried to locate him, without success. Instead of waiting, Entei used his Fire Release: Great Dragon Fire Technique and destroyed a nearby building, which drew the attention of dozens of Jōnin, who charged at Entei, but Entei easily defeated them. Entei soon spotted Minato and charged at him without thinking, but was caught off guard by Sarutobi, who attacked him from behind. Entei refused to battle against Sarutobi and only wanted to face Minato, but Sarutobi refused to leave as he wouldn't allow Entei to destroy his home, but Entei sent Sarutobi away with a powerful Water Release: Wild Water Wave technique. Entei and Minato engaged in battle at the top of the Hokage Rock as the villagers looked on, and Entei began having the upper hand, mercilessly beating Minato with his fists, but Minato was able to counter with his Rasengan, hitting Entei in his right arm and sending him flying. Entei's right arm was severely damaged, and realizing Minato would focus on his arm, Entei used his sword and cut off his right arm, much to Minato's shock and disgust. Entei then laughed at the pain and snapped as he declared the end of Konoha and prepared his Fire Release: Great Fire Annihilation to destroy the village, but was stopped by Minato and Sarutobi, who used his staff to attack Entei from behind while Minato used his Flying Thunder God Technique to send Entei's attack away from the village. Entei expressed his anger and hatred towards Sarutobi and the Hokage, as Entei blamed them for the deaths of his parents and became shocked as Minato told him he was the Fourth Hokage. Entei then told Minato he'd pay for becoming Hokage and knowing his end was near, Entei charged at Minato using his Lightning Release Chakra Mode, which caused a great strain in his body due to the pressure, but wanted to take Minato with him, but Minato avoided the attack, and stabbed Entei through the chest with his customised kunai. Entei's chakra mode ran out and he fell on his knees before falling down face-first onto the ground. With his dying breath, Entei expressed joy at the fact he left a mark in the Shinobi World and history itself, and claimed he was at par with the greatest names in history, such as Madara Uchiha and the Sage of the Six Paths, and hoped to see Minato again one day in the afterlife, before dying with a laugh.

Legacy
Entei's actions became known throughout the Shinobi World, and although his life wasn't as long as he expected, he left a great mark in the world, causing destruction throughout Amegakure's country, and the Land of Fire, with his biggest accomplishment being his assault on Konoha, which left the village in great destruction. Entei also became known throughout the world due to his feat in killing Hanzō, who was known to be extremely powerful. Entei's greatest rival was Minato Namikaze, whom Entei declared as the strongest opponent he'd ever faced and the only one who Entei showed respect to. This respect caused Entei to become obscessed with Minato, always wanting to battle against him, and never refusing his challenge.

Trivia

 * Entei may be a combination of 炎天 enten (blazing heat) or 炎 en (flame, an alternate reading of honō) and 皇帝 kōtei (emperor). It can be written in kanji as 炎帝 (identical to the Chinese Yándì).

Quotes
(To Hanzō) "Your biggest mistake was probably taking me under your wing, because THIS is where you die!

(To himself) ''I'll make sure the world remembers my name! Entei is the name who people will know throughout the centuries!''

(To Minato) ''You are the strongest opponent I've ever faced in my life! Sir, I respect you!''

(To Minato before his final attack) ''My end is near... but Minato, I'll make sure to take you with me... COME DIE ALONG WITH ME!!''