He is voiced by Takuya Eguchi in the Japanese version and Greg Ayres in the English version.
He has an impulsive streak and is very outspoken. Labeling himself a "delinquent", he considers Sōshi as his rival because he once called him cute, causing Banri to resent him.
He has strong feelings for Karuta Roromiya, who was the reason he decided he wanted to become strong. He deeply hates and is afraid of Kagerō because he was bullied by him when they were kids and the way he treats Karuta.
Near the end of Part 1, he tries to convince a possessed Karuta that he will be by her side, even if she cannot turn back into her human form.
- He has been reincarnated in Part 2 as a middle school student, but has no memories of Part 1, much like Ririchiyo and Sōshi. His SS is Karuta in Part 2, and he is now the youngest of all the residents.
- His Japanese Voice Actor, Takuya Eguchi is best known voicing as William Twining from Devils and Realist, Sohnosuke Izayoi from Danganronpa 3: The End of Hope's Peck Academy and Kakeru Manabe from Fruits Basket.
- His English Voice Actor, Greg Ayres is best known voicing as Kaoru Hitachin from Ouran High School Host Club, Negi Springfield from Negima, Kaworu Nagisa from Neon Genesis Evangelion and Monokuma from Danganronpa anime series.