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.
Sorry, I heard everything.
Entschuldigt, ich habe alles mitgehört.
Disculpen… Escuché todo.
Je suis désolé.
J’ai surpris toute votre conversation.
Scusate. Ho sentito tutto.
Desculpem, mas eu ouvi tudo.
Простите.