This whole story would start with a girl named Katori Irimi.
(#REALTED TO AN ANIME 'TOKYO GHOUL' FANFIC)
Katori was born in a normal happy family. She didn't have any siblings but she's already happy being without them because her parents were always there when she needed them.
Then suddenly one day something bad happened to her family. Will she ever find happiness ever again? Or will she suffer in despair?
Then the story starts...