For better or worse, it is in people's memories. Is the "someone" in your memory really real? Have you ever imagined how that "someone" really lived? This is a love story in which students question the existence of people by borrowing the figure of the Slit-Mouthed Woman, an urban legend created by people's memories, ideals, and fears.
| Actor | Role |
|---|---|
| YYuki YasuokaSakiko | Sakiko |
 Ryūgo YamazakiEight | Eight |
| MMao YoshinoTakaya | Takaya |
| NNanami KitanoIra | Ira |
| YYuri KanekoHanako-san | Hanako-san |
| MMiwa ShimataniAmabie | Amabie |
| AAkari DoiNot listed | Not listed |
| KKotomo TamaiNot listed | Not listed |