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.
Gakuto, make sure you lock the bathroom door, okay?
Lass uns die Badtür
gut abschließen, Gakuto.
Cerremos con llave
cuando nos bañemos, ¿sí, Gakuto?
Faudra pas oublier
de verrouiller la porte, Gakuto.
Gakuto, assicurati di chiudere 
sempre la porta del bagno, capito?
Gakuto, certifique-se de trancar
a porta do banheiro.