Ashita wa Docchi da!

明日はどっちだ！

Kirara is seen as a cute and girly boy to others, however he wants to be a cool and manly guy! So when two tall and cool boys move in nearby he starts to follow them around to learn how to be manly. As they grow up together, Kirara realizes that his feelings towards the younger brother, Ken, isn't just simple friendship. (Source: MU)