Otouto wa, Ookami.
Alternative title: My Brother is a Wolf, My Younger Brother is a Wolf, Otouto wa Ookami, Otouto wa, Ookami
Story Overview
Beitofuku's father remarried a week ago and her step brother turns out to be the school's most popular guy, Aizawa Hiroki. Giving the appearance of a gentleman it turns out he's a huge playboy, trying to "capture" her to prove they can't be a family!?