Hanako usually responded to messages right away, but Asayama waited for about 30 minutes and still received no reply. “It’s getting late, so I will go home,” Asayama said in a message to Hanako.

What’s even more fascinating is how the camera shows a top-down view of their segmented bodies as Kou holds a scared and crying Nene. Toilet-Bound Hanako-Kun’s unraveling mystery is what sets ...