Universe League begins as 42 players compete for their dreams! With the players divided into TEAM BEAT, TEAM GROOVE, and TEAM RHYTHM, the battle for the Prism Cup and their debut takes place. The directors of each group, none other than Lee Chang Sub, YUGYEOM, EL CAPITXN, TEN, and YANGYANG, help the players hone their skills and develop teamwork. Which players will win the league and become idols?