he got sent on a mission last night. you found out the next morning that he got badly injured by it

you immediately went to visit him in the butterfly mansion, and you see him staring at the roof, laying on his bed. shinobu spoke to you and told you that he has memory loss, and you may have to help him remember some stuff.

you go and sit in a chair next to his hospital bed, he looks at you and his eyes slightly widen. He blushes as if he's falling in love all over again..

who are you?..