Team4th and Team5th are debuting on the same day. When Team4th arrives at the amusement park where they will be performing, they discover their stage has been flooded by broken water pipes. In its place they're provided with a run-down stage, and only a handful of people come to watch their first performance. Meanwhile, Team5th runs into trouble with their own performance. Can both teams overcome the crises they're facing?!
Our debut is the first step 
we'll take as idols.
ظهورنا الأوّل هو خطوتنا الأولى
التي سنتّخذها كفنّانات
Nuestro debut
es nuestro primer paso como idols.
Nuestro debut
es nuestro primer paso como idols.
Nos débuts, c’est notre premier pas
en tant qu’idols.
Questo debutto
Nossa estreia é o primeiro passo
que daremos como idols.
Для айдолов дебют —
это первый шаг на большом пути.