D_Cide Traumerei the Animation (2021)

S1E8 Inside the Box

After crossing paths with Rando and Eru from the eternal summer island of Yura, Ryuhei and his friends discover a connection between the island and the Shibuya incident. The deep attachment Ryuhei and Rando have for their hometown leads to a confrontation between them. When Desaria shows up, he and Eru find themselves trapped in an elevator. While they take a moment away from the fight, Ryuhei is taken aback when Eru mentions "Kazuhazuka" in the ancient island tale of the "dead man's return."