With Matataki still absent from school and shutting everyone out, Umika must find a way to get through to her. But first, they decide to enlist help from a familiar face...
Letter of Challenge
رسالة تحدّ
Herausforderung
Notificación de desafío
Notificación de desafío
Lettera di sfida
Carta de Desafio
Письмо-вызов