Heishiro

Theme Song: Invincible by Adelitas Way

Aiko Midorikawa is a fanon character of Naruto, member of the Midorikawa Clan, and the son of Airi Midorikawa.

Background
Aiko was the second eldest out of the four Midorikawa siblings. He was diagnosed with a terminal and unknown heart disease, known to commonly cough up blood at random intervals. Doctors attempted to identify and stop the problem, but could do little to do so, as his body strangely wasn't responding to treatment, although he was alive. However, his troubles only increased when his mother, preferring to spend money on alcohol rather than them, sent them to seperate foster homes in order to save money.

For him, life in the foster home was resentful. He hated the feel of residing with other kids he considered were strangers to him. He rarely spoke, paying mind only to himself and alienating himself from both his guardians and children. For this reason, the other orphans gained a habit of bullying him, physically assaulting him whenever they had the chance. Attempts to defend himself proved to be futile, as they always came in a group to attack. Eventually, his resentment grew into a bitter hatred, for his guardians did little to stop the advances.

One of the guardians, a former swordsman, was kind enough to finally step in and help Aiko. Out of the watchful eye of the other guardians, he began to teach Aiko in the ways of shinobi art, in order to defend himself more properly. At first, it was a heavy start, with Akiko struggling to grasp the concepts. Even after he had fully mastered his training, he had only mastered six jutsu. Eventually, however, he began to succeed, showing a fast rate of development, even for his sensei.

Ultimately, when his fellow orphan bullies came to harass him once more, he was able to put up much more of a fight against them. Unfortunately, it immediately escalated, ultimately killing several of his bullies in the process. The remaining ones had turned and ran, alerting the guardians about the attack. Due to their blood on his hands, and a heated argument, Aiko was ousted from the orphanage, forever banned from ever coming back. Even his befriended sensei didn't defend him, regarding his actions as the "act of a demon". Deeply hurt and grieved by the betrayal, Aiko's mind eventually snapped, and he went on a rampage in the village he was in, slaughtering a murder of the population before he finally fled, never to be seen from again.

Personality
Aiko is a very cold, callous, dispassionate figure, and is rather aloof and indifferent, willing to harm both his comrades and enemies should they ever get in his way. Despite this, he is not particularly violent, despite appearances, and will only fight when provoked.

His cold demeanor allows him to stay completely calm and in control in most situations, and he is not easy surprised or caught off-guard. However, he does not seem to comprehend the trait of fighting against all odds or the very concept of a human heart/emotions. Thus, he can get easily frustrated with opponents such as the Kurosaki Clan, who are known for their determination, even to the point of losing his cool and speaking to them in a more infuriated tone.

He is also highly perceptive, cunning, and analytical, making surprisingly accurate statements about his opponent's abilities out of deducing previously facts and actions reguarding them. Before his confrontation with Deidara, he speculated of the weakness he had in long-range combat, since the bomber seemed to be keeping a certain distance away from him.

Abilities
Akio's abilities are similar to that of his brother Shinobu's. Although seemingly few in number compared to other S-Class shinobi, they are extraordinarily potent, making him a dangerous force to be reckoned with. Instead of chakra, which supports most shinobi techniques, they focus heavily on the use of magic energy, similar to Ean Eromalc's ice abilities. As such, he is the only one capable of using them to their full potential. Only his siblings have been able to use varients of his techniques to an average level of effectiveness. His strength and skill is such that he is capable of overwhelming a Sannin-level ninja, along with holding his own to a stalemate against two of them.

Dark Magic Techniques
Akio, during his days as a wandering swordsman, was known as the "Dark Mage", thanks to his manipulatic of negative magic. He could manipulate and expel his energy outside of his body, as well as using it to enhance his physical attacks. One of these abilities was even used in conjunction with his own kekkei genkai.

Swordsmanship Specialist
His fighting style, in terms of swordplay, mostly involves one-handed combat, which are more precise and elegant. He commonly keeps the other hand free, in order to catch a physical attack (e.g. blade, kunai, fist), or just to simply allow it to rest in his pocket. His attacks are accurate as such that he is able to slice an opponent's limb cleanly without too much effort, if he is able to get under their guard.

Immunity
The nature of his dark magic allows him to repel any attack focused on his internal organs. He is virtually indestructible against attacks such as genjutsu, poison, and tenketsu disruption. The only disease that affects him in battle is his own terminal heart disease. This is made very apparent in his fights, as he continuously coughs up blood when his heart pumps too fast.