The unit Over The Rainbow succeeds in its debut. Aiming to become like the boy band, more students enroll in Edel Rose. Hiro and the others begin practice for the Prism King Cup, an event that is held once every four years. However, a rival called "Schwarz Rose" appears... Who will become the Prism King, the one who can make girls' hearts throb the most!?
| Actor | Role |
|---|---|
 Tetsuya KakiharaKōji Mihama (voice) | Kōji Mihama (voice) |
 Tomoaki MaenoHiro Hayami (voice) | Hiro Hayami (voice) |
 Toshiki MasudaKazuki Nishina (voice) | Kazuki Nishina (voice) |
 Junta TerashimaShin Ichijō (voice) | Shin Ichijō (voice) |
| MMasashi IgarashiMinato Takahashi (voice) | Minato Takahashi (voice) |
 Shin-ichiro MikiJin Norizuki (voice) | Jin Norizuki (voice) |
 Shouta AoiLouis Kisaragi (voice) | Louis Kisaragi (voice) |
 Shunsuke TakeuchiAlexander Yamato (voice) | Alexander Yamato (voice) |
 Soma SaitoYukinojō Tachibana (voice) | Yukinojō Tachibana (voice) |
 Taku YashiroKakeru Jūōin (voice) | Kakeru Jūōin (voice) |
 Takuma NagatsukaLeo Saionji (voice) | Leo Saionji (voice) |
 Tasuku HatanakaTaiga Kōgami (voice) | Taiga Kōgami (voice) |
 Yuma UchidaYū Suzuno (voice) | Yū Suzuno (voice) |
 Daisuke NamikawaRyō Yamada (voice) | Ryō Yamada (voice) |