Seiyuu - Keisuke Ueda as Heine Wittgenstein [The royal tutor Stage Play] https://myanimelist.net/people/43577/Keisuke_Ueda Like Yuya, Keisuke is also an actor, but he also got a main role in The royal tutor anime :)
Heine Wittgenstein, metal badge, 「, Royal Teacher, Heine, 」. | Goods / Accessories | Suruga-ya.com