Mao Saitou

As a second-year high school student alongside Chika, this younger sibling of the Saitou family shares a striking resemblance to his older sister. Often seen carrying a signature hand puppet, he makes a memorable appearance during the series' opening episode. Beyond his quiet presence in the classroom, the young boy harbors a subtle, budding crush on Chiko, adding a layer of sweet, adolescent tension to his character's ongoing journey.