Shinji is a young man with a rather muscular build, standing relatively shorter than other high-ranked Pro Heroes. Underneath his helmet, he has puffy red leaf-like hair, though his face has remained unseen since he has only been shown while wearing his mask. Shinji is a very serious and focused person when it comes to being a hero in his hero duties; however, he easily feels down when someone takes his glory or credit. At the same time, he also appears to be rather emotional.