"This QUELL's song. Our song."

Izumi Shu, who once worked as part of a national idol unit, has been  busy lately promoting the drama he's starring in. Meanwhile, in order to catch up to their leader, Horimiya Eichi, Kuga Issei, and Kuga Ichiru, the other members of QUELL, devote themselves to their work and lessons.
My muscles are sore from dancing 
all day, but it's worth it.
تخدّرت عضلاتي من الرّقصِ طوال اليوم
لكن الأمر جدير بذلك
Me duelen los músculos de bailar
todo el día, pero vale la pena.
Me duele todo de bailar
todo el día, pero merecerá la pena.
On a des courbatures, à force,
mais ça vaut la peine.
Ho i muscoli doloranti a furia di ballare
tutto il giorno, ma ne vale la pena.
Estou com dores musculares por dançar
 o dia todo, mas vale a pena.
Мышцы болят от ежедневных
уроков, но это того стоит.