Shinrei Taiken: Jikkenshitsu no Mariko

Tennis club members remain at school for a summer training camp. One evening, some of them gather to conduct a test of courage in a school laboratory where a ghost is said to haunt—a girl who supposedly committed suicide by hanging. During the event, Chiho stops a boy from harming his eyes. At the time, she was confused by his reaction, but now she realizes the reason, as she herself has thoughts of harming her own eyes.