(Apocalypse + white-haired little girl + a touch of yuri + thrilling fights + gets rather angsty later on)
The apocalypse arrives, and strange creatures run rampant.
Among the ruins, a black-haired woman named Jin finds a white-haired girl with no memories and brings her back to K City. At last, the girl has a home of her own.
She enters an elite academy, makes trustworthy friends, and finds people she wants to protect.
However, an organization lurking behind the apocalypse has also set its sights on her. As one battle follows another and memories resurface, she gradually begins to realize...
Perhaps she isn't a survivor of the apocalypse at all, but...
“What am I, really?”
Xia Yuan: Read that last line like you're doubting yourself, Sister Jin. What does “doubting yourself” mean?
Jin: You gave it away! You don't have to read that part.
Xia Yuan: Oh, oh, sorry (;ŏ﹏ŏ).
Jin: Never mind. Let's just start.
Xia Yuan: OK, the show begins!
