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'll help keep your secret from Hayato!
Ich helfe dir dabei!
¡Te ayudaré para que Hayato
no se entere de la visita a las aulas!
Je dirai pas un mot de cette journée
à Hayato, je le te promets !
Ti aiuterò a tenerlo segreto da Hayato!
 Te lo prometto!
Guardarei segredo do maninho Hayato!
Я тоже ничего не скажу Хаято
про открытый урок! Обещаю!