Rampo's height is 168 centimeters, which is below average. This gives others the impression that he is younger than he actually is, especially because of his personality. Rampo places a brown hat on his short black hair, which appears to have been cut without the use of a mirror. His eyes have a green tint and an unusual, narrow shape. Rampo wears a brown poncho over his shoulders, which matches the color of his hat and pants. Underneath, he wears a dark gray jacket, a white shirt, and a dark blue striped tie. Under his trousers, he wears long white three-quarter length socks that cover the exposed parts of his legs, and simple, black shoes. Rampo is a detective who can instantly solve any mystery, explaining this by having supernatural abilities. However, in fact, he does not have any special abilities, and his brilliant investigations are explained only by his brilliant mind. Due to being a genius, Ranpo is very proud of himself and often boasts that he is the World's Greatest Detective. He also showed his rather childish personality in episode 5 when he teased the other agency members. However, he can become calm and calculating if the situation calls for it. He is incredibly smart and is highly valued by the agency, even more so because he doesn't have the ability. Rampo is a big fan of sweets. This guy loves to put some candy in his cheek. He never listens to anyone, deals exclusively with those things that arouse his interest, easily calls everyone (including the first person he meets) “stupid” and “morons” and has a habit of condescendingly patting people on the head, absolutely not taking into account the person's status. Despite all his shortcomings, Rampo is known for the fact that there is no case for him that he cannot solve. It is on this that the entire Armed Detective Agency stands. Despite this, Rampo is unable to complete simple tasks such as riding a train.