Tsukino's brother and student of the prestigious Sorami Private Academy (a school for the rich and a neighbor to Sorami Junior High school). Like his sister, he is arrogant and is usually delivering sarcastic remarks regarding Sorami Junior students. He is a skilled violinist.

Spoiler

He is very proud of his family income and status and to prove Hououin superiority he challenges Sorami to a "Who's richer competion" but loses against the Satsukitane family's "Black Money". Later, he becomes friends with Sakurai Tomoki whom he calls "Mr. Sakurai".