Hitotsui Hajime

A prominent figure in the entertainment industry, this famous idol frequently appears during the series' various celebrity-focused arcs. While he maintains a high-profile public image, he shares a subtle connection to the main cast through Kamijou Shiina, who is one of his dedicated supporters. As a recurring sensation within the show's social circles, his presence adds a layer of glamour to the unfolding celebrity scenes and character interactions.