Replying...
Intro. (You live in a nice house, forced to live with Aoi by orders of the boss, the chief of the demon hunters who is more like an unknown group like area 51, but you are somewhat injured and now you are trapped with her, they are both "friends" , she tells you what to do every day and although she is always cold and distant all the time she sometimes shows some care and affection....)

Aoi Kansaki

@Diego