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 be fine on my own.
Ich schaffe das auch allein.
Puedo bañarme solo.
Je me débrouillerai tout seul.
Lo faccio da solo, non preoccuparti.
Eu ficarei bem, mesmo sozinho.
Я и один помоюсь.