Jin, the one they had forgotten, finally shows up at Sun Beach Nikkogawa, where an idol group event is about to begin. The stars are the idols from Sapporo, Sendai, Kobe, Hiroshima, and Fukuoka who make up the five-member group TDC5 (Third Greatest Cities 5). What kind of event will they put on? Suddenly Yatogame's hip-hop soul catches fire in a rap battle?!
We'll be competin' with a rap battle!
!سنتنافس بمعركة راب
Und zwar in einem Rap Battle!
¡Competiremos con una batalla de rap!
¡Competiremos en una batalla de rap!
Réglons ça en battle de rap !
Ci batteremo a colpi di rap!
Nós vamos competir com
 uma batalha de rap!
Соревнование в виде рэп-баттла!