Yaya officially joins the Yosakoi Club, making for four members. They make progress on their preparations for the department store event, but they forget to bring their CD. Sally-sensei says she'll "ask her sister", who, as it turns out, is student council president Machi. The four approach their first performance, but…
so I was hoping it could 
be useful for something.
لذلك كنت آمل أن تنفعني في شيء ما
und ich hoffte, dass ich mich bei
etwas nützlich machen könnte.
así que quería hacer algo de utilidad.
así que he querido sacarle algo de partido.
alors je me suis dit
que je pouvais aider.
que estava esperando que 
isso fosse útil para algo.