I like that you don't give any thought about family being... family. You know, incest ?
I like that a lot.
But technically, you know, they're not really HIS family.
I mean, let's be honest. He somehow found himself in this world, in this body, and now he has this mother and sisters... but in his mind, they're probably not really HIS family.
In his position, would you REALLY feel: "Oh hey, this is my mother" ?