The treasurer of the student council of the Shuchiin Academy. Hes extremely valued by Miyukihttps://anilist.co/character/121101 given that he singlehandedly manages all the schools funds. Hes also terrified of Kaguyahttps://anilist.co/character/120649 though no one else is sure why that is. Yuu keeps to himself and rarely speaks up often getting into trouble when he does. He has a depressed outlook on life while having an inferiority complex. In contrast to his attitude he is willing to help those in need and will sacrifice his pride if need be. Unlike his high school self he had a much different outlook and demeanor during middle school.