[Machine Translation] Ryuki, a former delinquent, takes care of his brother Tsuyoshi's child, Reio, who is in nursery school. Just as he is about to give up on childcare for the first time, he meets a helper sent by Tsuyoshi: Kosei Shiba, a legendary yankee whom he had admired during his school days. He is now the president of an IT company. He is puzzled to find out that he is Tsuyoshi's ex-boyfriend, but living together with Kosei, an excellent cook and a reliable man, and the cute Reio is like a dream...