Hayakawa Rou is a student at the school where Morinome Shinako teaches. They seem to have some kind of shared history.
I forgot something in the classroom.
.نسيتُ شيئًا في الفصل
Ich hab was im Unterrichtsraum vergessen.
Olvidé algo en el aula.
Me he dejado algo en el aula.
J’ai oublié quelque chose
en classe !
Ho dimenticato una cosa in aula.
Esqueci uma coisa na sala de aula!
Я кое-что в классе оставила.