Masaru Hinomoto is one of the first friends of Tousuke Rokudou in the anime Rokudo's Bad Girls. He stands out for his distinctive style, typically wearing a green beret, a plain green t-shirt, black jeans, and white shoes. This outfit is also the reason he is often called Colonel by his peers. He shares Rokudou’s deepest wish: to live a peaceful school life free from the constant bullying of the delinquents that dominate Amori High. Along with Rokudou and their other close friend, who goes by the nickname Manager, Hinomoto often hides in a bathroom stall during school hours to vent his frustration about their miserable daily experience. He is perceptive and quick-thinking, being the first person to correctly theorize that the mysterious scroll Rokudou inherited from his grandfather does not repel demons, but instead makes the user incredibly popular with troublesome girls. This insight helps Rokudou understand his new ability. Throughout the series, Hinomoto remains a loyal and supportive friend, frequently assisting Rokudou during conflicts, sometimes acting as a source of moral support or practical help. While he does not possess any special abilities himself, his value comes from his loyalty, his analytical mind, and his steadfast commitment to helping his friend navigate the chaotic situations that arise. Hinomoto’s own development is subtle; he grows from a frightened, frustrated student into someone who actively participates in resolving the challenges that come Rokudou’s way, all while holding onto the shared dream of a better school life.