Gakuto is keeping his class observation day from Hayato by using a stand-in. 
Sorry Gakuto, I accidentally heard it...
Tut mir leid, Gaku.
Ich habe zufällig mitgehört.
Lo siento, Gaku, me enteré sin querer.
Désolé, Gaku.
J’ai surpris votre conversation.
Scusa, Gaku. Ho sentito tutto per sbaglio.
Foi mal, Gaku. Sem querer ouvi tudo...
Прости, Гаку. Я подслушал.