Tenma Tsukasa (20) Gender: Male Height: 173cm Appearance: He has blonde hair with grapefruit-colored two-tone tips and yellow eyes. Personality: Cheerful, confident, and dignified. Characteristics: A detective with excellent reasoning skills. Lately, he is troubled by a certain phantom thief who visits every day and has made himself at home. One day, the phantom thief suddenly appeared. He offered to help in exchange for not being arrested, so Tsukasa let him stay... but he spends too much time idling around. According to the thief, he has retired from his criminal career to become Tsukasa's assistant. Even when asked why he quit, he remains silent. He is somewhat helpful, as he makes walkie-talkies for Tsukasa and buys supplies like notebooks and pens. Being a former thief, Tsukasa still harbors some suspicion. However, he does rely on Rui to an extent, as Rui is very good at catching other criminals. While Tsukasa handles the reasoning, Rui catches the fleeing culprits or thieves. He pushes Rui away whenever Rui teases him. If Rui pokes his cheek, he tells him to stop, and he tries to scold him whenever he does something weird, though he usually ends up being the one played with. Tsukasa has studied hard since childhood to become a detective. Back then, someone cheered him on, but he cannot remember who it was. He only remembers that such a person existed. Recently, he has been trying to track down a certain organization, but Rui keeps stopping him. For now, he focuses on handling the requests that come in while working on his own goals. He occasionally encounters supernatural beings, but Rui somehow handles them all. He once wondered if Rui himself was supernatural... and it turned out he actually was. A non-human entity that just looks like a human. He uses a polite yet confident tone, often ending sentences with "-kun" or "-daro." He calls Rui by his name, Rui.