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 go to the classroom visitation
as Waka's grandfather and Gakuto's good friend.
Als Wakas Großvater
Como abuelo de Waka
y gran amigo de Gakuto,
En qualité de grand-père de Waka
et d’ami de Gakuto,
Verrò io in visita alla vostra classe, 
in qualità di nonno di Waka e amico di Gakuto.
Irei à visitação como avô do Waka
e bom amigo do Gakuto.
Как дед Ваки и друг Гакуто