哀川翔

Nijima

香川照之

Miyashita

柳憂怜

Hiyama

下元史朗

Otsuki

翁華栄

Ariga

Kaoru Sunada

Ostuki's Mistress

丹治匠

Girl's Younger Brother

佐藤はな

Math Class Student

Satoshi Morihiro

Okabayashi

Ayami Oda

Emi

Mizuho Tanaka

Nijima's Daughter

Kazutaka Niyama

Hiyama's Underling

Yoshitaka Kowashi

Hiyama's Underling

Hideo Usui

Hiyama's Underling

Takeshi Ôshima

Hiyama's Underling