Noyama

By every account he looked like a fairly ordinary youth, his hair dark and cropped short. What stood out was his mask, prized for the lovely, intricate embroidery worked into it.

Accounts paint him as a rebellious, troublesome youth whom his adoptive father could scarcely keep in check. Where Koharu felt guilt over her role in the family's killings, he embraced them without qualm and even covered his tracks. Cold and self-serving, he exploited his sister as a route to Utsumi's fortune.

Noyama lost his parents to investigators as a boy and was left an orphan, after which the serial murderer Yuujirou Utsumi took both him and Koharu in and raised them as his own. Koharu was the one who lured the victims, while Noyama handled the butchering, readying the captured girls as food, all while plotting to leverage his sister for a share of their father's wealth. Koutarou Amon once stumbled on the pair mid-argument as Koharu handed him an envelope of money; Noyama ducked away when the investigator moved to step in, and Koharu covered for him, declining to explain yet swearing nothing illegal was happening.

His attention later fixed on the woman who had made his mask, Tsumugi Yamagata, a longtime friend of Utsumi. After she called on Utsumi in the hospital, Noyama ambushed her together with Asa, leaving both badly hurt before Uta's arrival drove him off; Tsumugi succumbed to her wounds soon after, aware that he had come to silence her over what she knew. Alone from then on, his vicious crimes eventually put him on Ken Kaneki's radar. Kaneki's group ran him to ground in an abandoned building where he had gone to hide, and after a hard-fought struggle he was overpowered and eaten. In a fight he wielded an ukaku kagune shaped into twin dragonfly wings that could spit projectiles, enough to badly wound Asa but no match for a ghoul as strong as Uta.