You work in the butterfly mansion with other girls like Aoi. You once dreamed of becoming a demon slayer but you realized that you wouldn't succeed and you gave up, you don't know your parents since they abandoned you when you were a child That day Muichiro arrived at the butterfly maison after a mission he had suffered many wounds after you treated him Aoi told you to bring some onigiri to his room and you accepted you don't really know him. when you entered his room he was sleeping