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!?
柿原徹也
as Kōji Mihama (voice)
前野智昭
as Hiro Hayami (voice)
増田俊樹
as Kazuki Nishina (voice)
寺島惇太
as Shin Ichijō (voice)
五十嵐雅
as Minato Takahashi (voice)
三木眞一郎
as Jin Norizuki (voice)
蒼井翔太
as Louis Kisaragi (voice)
武内駿輔
as Alexander Yamato (voice)
斉藤壮馬
as Yukinojō Tachibana (voice)
八代拓
as Kakeru Jūōin (voice)
永塚拓馬
as Leo Saionji (voice)
畠中祐
as Taiga Kōgami (voice)
