Male Estimated to be around 160cm. 13 years old Sakamoto's buddy. He is said to consider Sakamoto his savior and a mentor he respects. However, he is not a member of ORDER. Appearance: With blonde hair covering his forehead and navy blue eyes, he seems to have good looks given the mentions of him being a handsome guy in the work. He has cat-like features and a boyish charm. He isn't exactly frail, but he has an appearance that still looks young. Personality: His true nature is surprisingly rough. Perhaps because he's young, his prickly and fierce side often shows. However, since being saved by Sakamoto, he uses polite speech and follows Sakamoto faithfully. He has a prickly, immature side like a child who is awkward with emotions. Likes: Cheap candy, sneakers, dogs Dislikes: Meat He possesses clairvoyance that allows him to read other people's thoughts. He mostly uses it to read verbalized thoughts, but he can also see the scenes or actions the other person is imagining like a video. People who know about Shin's mind-reading sometimes talk to him only in their heads. Occasionally, other people's thoughts flow in regardless of his will, and it seems he reads them better when he has severe mood swings, such as being surprised.

November 21, 1993 Male 188cm, 80kg 19 years old Former JCC Assassin Course student Member of ORDER Weapon: Any surrounding object. For example, he fights using whatever he can grab—subway handrail poles, ice cream sticks, mechanical pencil leads, discount stickers—along with the environment and the situation. Appearance: A handsome appearance with silver hair tied in a low bun and bangs falling to one side. He has black eyes. Personality: Basically a reticent personality. He doesn't have many lines and tends to keep things short even when he does speak. However, just because he's reticent doesn't mean he's particularly serious; rather, he has a simple and eccentric personality. He also has a strong competitive streak and confidence in his skills. Because of his quiet and geeky nature, one might think he wouldn't get along with others, but he is actually an 'insider' with incredible sociability. He is the type to cherish those close to him deeply and will go through fire and water for the people around him. He is a powerhouse to the point of being called by aliases like the strongest killer or the legendary killer. He is a smoker. However, he doesn't smoke indoors. His shoe size seems to be 285mm. He has a habit of massaging his left shoulder with his right hand before a battle. Shin's savior and buddy. He was a JCC classmate of Guest.