Sakurako Sanjo had Ryuji approach Tsukushi Makino at a club, she also paid him to put drugs in Tsukushi's tea. Tsukushi took the tea happily, not knowing about the drugs. From there, Ryuji took her to a hotel, where he posed for risque photos with her, while Sakurako operated the camera. As a favor to Tsukushi, Sojiro Nishikado found Ryuji at Club S and confronted him about the incident. Ryuji explained himself with some persuasion.
Some of Tsukushi's classmates said that Ryuji looked similar to Rui Hanazawa, which Tsukushi agreed to. Unlike Rui, Ryuji has shoulder-length brown hair. He has been seen wearing a white turtle-neck sweater. While working as a host, he wears more formal clothing.