A woman and her child get trapped underground while investigators look for them.
| Actor | Role |
|---|---|
 Machiko OnoMother | Mother |
 Keisuke HoribeInvestigator | Investigator |
 Naoto NojimaNot listed | Not listed |
| KKanato TanihataKid | Kid |
| AAkishi YamaguchiNot listed | Not listed |