PROTOSTAR released their debut CD and won the New Men's Idol Festival. Akira and the group discover from their agency that they'll compete in a New Music Release Battle against fellow sMiLea Production's LEGIT and JAXX/JAXX. Although Akira doesn't know what this battle will entail, he's excited since life as an idol is fun. But Akira's best friend, Kacchan, seems to be brooding over something...
