A high schooler fulfills a lifelong fantasy after a high-tech device lets him slip into the body of his childhood crush's best friend.
| Actor | Role |
|---|---|
 Issei FutamataAsagaya Takao (voice) | Asagaya Takao (voice) |
| MMiyoko AobaNakano Koenji (voice) | Nakano Koenji (voice) |
 Yumi TakadaKomaba Ikenoue (voice) | Komaba Ikenoue (voice) |
| HHiroshi KiyoharaKomaba's Stepbrother (voice) | Komaba's Stepbrother (voice) |
| OOchiai BoDr. Toyama (voice) | Dr. Toyama (voice) |
| TTatsuya HaraBig Man / Dr. Toyama's Assistant (voice) | Big Man / Dr. Toyama's Assistant (voice) |
| YYozo UnoHirota (voice) | Hirota (voice) |
| KKazuko OkadaFemale Student (voice) | Female Student (voice) |
| KKazuko MasuFemale Student (voice) | Female Student (voice) |
| NNakahata KiyokoFemale Student (voice) | Female Student (voice) |