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Rika Mizuki (観月 梨花, Mizuki Rika), renowned as the "Sky Queen of the Hidden Cloud" and the "Goddess of Flash" is a Jōnin-level Kunoichi from Kumogakure, the former of leader of the ANBU Assassination division, and the current leader of Team Rika.
Rika is a member of the Head Family of Kumogakure's Noble Mizuki Clan. Unlike the other members of her Clan, known for their inherited Storm Release nature, Rika instead was born with a unique Sky Release nature. Not much is known about her early life; she was trained from a young age to one day become the Head Mizuki and as such, didn't have much time to spend with her fellow classmates. Raised in the midst of the Third Great Ninja War, Rika graduated from Kumo Academy at the young age of seven, and quickly moved up the ladder of Ninja ranks: becoming a Chūnin when she was only eleven, and a Jōnin only a year after that. At some point in her life, she was able to "figure out" the connection between the three natures that make up her Sky Release, and after months of research and experimentation, she was able to develop her clans Storm Release.
As the war was still going on during this time, she spent a great deal of her time on the battlefield and in combat. In one of her battles, Rika and her teammates went up against Kirigakure's most elite group of Ninja. It was during this battle that the full power of Rika's abilities were put on display, and after a long and bloody battle that lasted almost an entire day, Rika and her team just barely managed to beat the group of seven, putting them into a near death state, and escaped back to Kumo. Afterwards, Rika's moniker of "Rika the Flash Mistress" was elevated to Flash Goddess Rika (瞬神 梨花, Shunshin Rika), as out of everybody present, she was the only person to leave the battle with only minor wounds, as her blinding speed and reflexes made her next to impossible to hit.
Rika Mizuki is an extremely powerful Kunoichi from Kumogakure, hailed as the their Taijutsu Mistress Flash Goddess Rika (瞬神 梨花, Shunshin Rika), known throughout the Elemental Nations for her amazing speed and extremely precise attacks.