Hayakawa Rou is a student at the school where Morinome Shinako teaches. They seem to have some kind of shared history.
Toizumi Municipal High School
 Graduation Ceremony
حفل تخرّج
ثانوية تويزومي البلديّة
Abschlussfeier
Ceremonia de Graduación
Preparatoria Municipal Toizumi
Ceremonia de graduación
Instituto Municipal Toizumi
CÉRÉMONIE DE REMISE DES DIPLÔMES
Cerimonia di Diploma
Escola Municipal Toizumi
Cerimônia de graduação
Выпускной в старшей
школе Тоидзуми