Ani-Com

Maachi is a 15 year old girl who loves her brother Riichi. Actually, the two of them are not related by blood, but due to their parents work situation they are forced to live alone together. Riichi, who's looks, personality and grades are top-class, is the idol around school. But he has a huge secret, that only Maachi knows about. Riichi is actually an otaku!!

(Source: Hanashi Scans)