The theme comes from unique Japanese folklore, Red Uncleanness or defilement with blood. A girl, whose thought pattern jumps at a leap. . . confines her various thoughts on the other side of the mirror and inside the sliding doors to go outside.
| Directing | Yumi Kawai | Director |
| Production | Taruto Fuyama | Producer |
| Sound | Haruna Maemura | Music |
| Sound | Haruna Maemura | Sound Designer |
