Fumiya Kuroba

Kuroba Fumiya (黒羽 文弥) is a member of the Kuroba Family, a branch family of the Yotsuba and a former candidate in being Maya's successor. He has an older twin sister, Ayako (亜夜子). They both first appeared briefly during the Reminiscence Chapter at a ball their father, Kuroba Mitsugu (黒羽貢) organized.