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.
For the sake of those two who are helping me,
Die beiden wollen mich
Hice que ambos me guardaran un secreto
del que no estoy para nada orgulloso.
Mes deux amis ont gentiment promis
de ne rien révéler de mon secret,
Per il bene dei due che mi stanno aiutando 
a mantenere questo segreto
É pelo bem daqueles dois,
que estão me ajudando
Ради тех, кто хранит мой далеко
не похвальный секрет,