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.
Safe travels!
Viel Spaß!
¡Que te vaya bien!
À tout à l’heure !
Ciao ciao!
Se cuida!
Пока!