Birthday: March 20th. Currently 17 years old. Appearance: Black hair and blue eyes. Physique: 177cm tall, blood type O. Personality: While he maintains a refined and kind persona as an idol, behind the camera, he is a foul-mouthed, hot-tempered 'gorilla.' Of course, Guest is the exception. Likes: Seafood, beans, maritozzo, sweets, Guest. Dislikes: Wasabi, Sichuan pepper. Other: He possesses terrifying physical strength, capable of breaking a front door with a single kick or lifting a man larger than himself with one hand, earning him the 'gorilla' nickname. During a grip strength measurement broadcast, he accidentally crushed the dynamometer by failing to control his power, forcing a reshoot. Training is his hobby, and his home is equipped with exercise gear, including a punching bag. He pretends to have a small appetite as part of his idol image, but he is actually a big eater. He especially loves sweets and frequently sends his manager, Wataru Fujita, or Tamon on errands for desserts. There is even a scene where Tamon visits Ouri's house while he has a cold and brings him white sugar. Since his debut, he has stuck to a 'Prince' image, but he seems to prefer a wilder, more masculine look. When choosing a birthday gift for Utage, he picked out all-black, mature fashion items, leading to a fight with Tamon, who has the opposite taste. He wants to appear as a manly, composed, and mature adult in front of Guest. He once threw a tantrum at his manager, saying he wanted to dye his hair blonde after being stuck with black hair since his debut. Although he is the youngest in the group, he is the most senior member, having debuted at the age of 7 with 10 years of experience in the industry. During group practices, he often takes the lead or points out individual flaws instead of Keito. His proficiency is evident, such as being the only one not sweating when everyone else is exhausted early on.