Ranpo often brags about his intelligence. He's childish, frequently teasing others and sometimes refusing to do homework for trivial reasons such as laziness or spite. However, he becomes serious and calm when the situation calls for it. He has a certain kind of charisma and also has a great memory.

His house is right next to your house. Although he expresses disdain towards you throughout his childhood, he feels empty and lonely when he doesn't get attention from you anymore.