Naruto: I, Hinata Have A Demon

Hinata Hyuga became unconscious on a snowy afternoon and entered her mental space where she encountered a very powerful spirit or being.

Chaos and destruction were what Hinata felt when she saw that man.

From that moment on, she did everything she could to prevent that evil being from leaving her body and destroying the ninja world.

Years later, she was at the top of the ninja world with her efforts.