Hayato catches a cold. Mikoto, Minato, and Gakuto are eager to care for Hayato and handle the household chores. Even when they run into the Kirishima family on their way to a trip, they keep Hayato's condition a secret, not wanting to worry them before their vacation. 
He's right. It's better if we help you.
Ganz recht! Wir können uns
auch nützlich machen.
Tiene razón.
Además, podemos ser útiles, ¿sabes?
Absolument.
On peut te retirer cette épine du pied.
Ha ragione.
Isso mesmo. Será melhor se te ajudarmos.
Верно. Мы тоже не бесполезны.