Two units are making their debut, one with Uzuki, Rin, and Mio, the other with Minami and Anastasia. They all become busy with lessons to prepare for their mini-concert debut. However, Miku's frustrations boil over when her own debut isn't in sight.
If it happens twice,
it'll happen a third time.
Bei zweien wäre ’ne dritte
nicht verwunderlich …
No hay dos sin tres.
Donde caben dos, caben tres.
Beh, dopotutto non c'è due senza tre.
Se isso acontecer duas vezes,
 então acontecerá a terceira.