Ngoan Cố, Ngu Xuẩn

千葉繁

Grandfather (voice)

山谷祥生

Junpei Yoshino (voice)

野田順子

Nagi Yoshino (voice)

拝真之介

Principal (voice)

中島卓也

Male Student (voice)

藤田奈央

Takashi-kun (voice)

福原綾香

Answering Machine Service (voice)

長尾明希

Transfigured Human (voice)