This special takes place before episode 42 of the Kamen Rider Build TV series. Misora, who has gotten irritated with Gentoku’s Fashion Sense, takes him out for shopping to buy new clothes. Over there he meets a boy but...
| Actor | Role |
|---|---|
 Kensei MikamiGentoku Himuro / Kamen Rider Rogue | Gentoku Himuro / Kamen Rider Rogue |
 Kaho TakadaMisora Isurugi | Misora Isurugi |
 Atsuhiro InukaiSento Kiryu / Kamen Rider Build | Sento Kiryu / Kamen Rider Build |
 Tetsuo KanaoEvolto (voice), Evol Driver (voice) | Evolto (voice), Evol Driver (voice) |
 Hiroko TaguchiHiroko Nanami | Hiroko Nanami |
| SShido TanakaSho Nanami | Sho Nanami |
 Norio WakamotoSclash Driver (voice) | Sclash Driver (voice) |
 Katsuya KobayashiBuild Driver (voice) | Build Driver (voice) |
| NNaomi ItoClerk | Clerk |