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!?

By day, Romeo Maki is a respectable man who loves bringing gifts to the local orphanage, and Juliet is a newly employed nun working at said orphanage. However, by night, they are Masked Man M and Lady S, popular professional wrestlers. Kick-Heart tells the story of what happens when this dynamic pair meet in the ring, the only place where they can express their hidden desires.

After the intense quarterfinals, the U-17 World Cup competition has been whittled down to four formidable teams. Standing between Team Japan's quest for international glory is the nine-time tournament champion, Germany, and their star-studded team, pro player Jurgen Borisovich Volk at its helm. With both the momentum and the crowd's favor on the side of their opponents, Japan faces an uphill battle. Determined to avenge an earlier loss, Japan sends seven of their best—including team captain Houou Byoudouin—to challenge the German national team. But trying to reach the finals for the first time in Japan's tennis history may cause even these fearless players to crumble under mounting waves of pressure as they venture into uncharted territories.