Kū Morimoto

Kū Morimoto (空 森本, Morimoto Kū) is a kunoichi of Konohagakure. After the loss of her mother, Kū finds herself battling her other personality after the trauma of being experimented on by Keiko Morimoto, the same parent she's grieving, who forced the artificial "Void" chakra to replace her previous air, water, fire, earth and Yang chakra by combining them all. However, after being supported by her friends through her rough times, Kū gets over it and finds herself fighting to protect her loved ones in Konoha.

Background
Kū is the only child of Hiyama Morimoto and the deceased Keiko Morimoto. The two split after Keiko's obsession with proving the truth of Void chakra began to draw the two apart, causing Hiyama to leave in the middle of the night, reluctantly abandoning Kū with Keiko. Unlike her friend, Sakura Haruno, Kū's childhood was filled with tragedy. Lacking a childhood due to constantly taking care of Keiko, even at the age of 8. Kū is eventually kidnapped by Keiko and is taken to her secret laboratory, where she goes through a torturously long process of her chakra being mutated into Void chakra by her own mother, throughout which she is also berated for being "selfish".

After reaching the age of 12, Kū's