A class observation day was scheduled to be held in Gaku's class. However, Gaku was worried that if Hayato took a day off to attend, it would cause inconvenience at his workplace and increase his workload.
I don't want to add to all of that.
Ich darf ihm nicht noch mehr abverlangen.
No puedo hacer que se exija todavía más.
Je veux pas l’accabler davantage.
Non voglio che si sforzi troppo.
Não quero causar mais problemas.
Я не хочу ещё сильнее его обременять.