Tomoya Mizuno is one of the main characters in the 'Sanrio Danshi' (Sanrio Boys) series. As a high school student who loves Sanrio characters, particularly Cinnamoroll, Tomoya initially struggles with expressing his fondness for cute things due to fear of being judged. Throughout the series, he grows more confident and forms close friendships with other boys who share similar interests. Tomoya is kind, empathetic, and plays a central role in encouraging acceptance of individuality and friendship.