"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.
Ichiru and Issei must've been exhausted.
لا بدّ وأنّ إتشيرو وإيسّي مُتعبان
Ichiru e Issei debían estar exhaustos.
Ichiru e Issei debían estar agotados.
Ichiru e Issei dovevano essere esausti.
O Ichiru e o Issei deviam estar exaustos.
Ичиру и Иссей, видимо,
очень устали.