After Mana's sudden disappearance from her room, her sister, Ako, finds a website on Mana's computer. In Ako's ongoing search for Mana, she notices strange things about the website that she should not have uncovered.
| Actor | Role |
|---|---|
 Marie OnoAko Shimizu | Ako Shimizu |
 AyanoSawa Goto | Sawa Goto |
 Hiyori YukiKazuki Manabe | Kazuki Manabe |
| 伊伊藤星Aoi Yamagishi | Aoi Yamagishi |