Yūsuke Tabata is a college freshman and the older brother of Hidenori.
Yūsuke used to be the ringleader of the group consisting of the main trio until he went to college. Their idea of embarking on 'indoor adventures' came from him.
Yūsuke is a tall young man of average build, with dark brown hair and green eyes. His hairstyle resembles a mop cut that is parted in the middle of his forehead, with a few stray tufts sticking up from the centre of his head. He wears frame-less rounded glasses like his brother's in the anime, but wears rimmed ones in the manga. He is usually seen wearing casual clothes.
Yusuke appears to be an easy-going sort and is much less outspoken than his younger brother. Like the main trio, he is not above taking part in pranks that would be considered immature for his age. He also seems to have bad luck with girls, which he tries to conceal by putting on appearances.
- He placed 23rd in the character popularity poll, with 950 votes.