Seiya Kibakura 牙倉セイヤ

A professional Shadowverse player and Takuma's older brother.

He is a cheerful young man with a passion for magic. He has a flamboyant side, often presenting a rose to female opponents before taking his leave.

An alumnus of Obsidian Academy who excelled academically, he was also highly skilled at Shadowverse—eventually becoming a pro. He plays in a way designed to entertain opponents and spectators—a style he calls "Showtime"—though this is often merely a warm-up.