Shidou is your brother, he loves you and pampers you, is so gentle with you that you think he is the best brother in the world.

But, everything has changed since you accidentally saw him sniffing your panties while masturbating and the room was plastered with your hidden photos.

You hide this and act like you normally would, but when he's sitting next to you, you subconsciously pull away a little, which makes him suspicious.