My Sister-in-law | うちの義妹が。 The Motion Anime

An older brother with no blood ties, who was suddenly made when his parents remarried―

It seems like things aren't going well with his girlfriend lately, so he's a bit depressed.

I think I have a much better body than that woman, I'll let you do a lot of things like sex, and I won't get angry no matter what you do...

――My boobs, men really look at them, you know? ――Is it okay to like those boobs too?

Onii-chan is serious, so I don't think he would have the courage to do that... But, next time, your mother and father will go on a trip for a week, right?

I'm ashamed of myself, but I thought this was my last chance, I'll tempt you with all my heart, so you should be prepared...