星野源

Senpai (voice)

Kana Hanazawa

The Girl with Black Hair (voice)

Ami Koshimizu

Naoko (voice)

Aoi Yūki

Princess Daruma (voice)

Hiroshi Kamiya

Director of School Festival Operations (voice)

本多力

Bookstore Shopkeeper Gabi (voice)

Hiroyuki Yoshino

God of the Old Books Market (voice)

Jun'ichi Suwabe

Nise-Jōgasaki (voice)

山路和弘

Todo (voice)

Kazuya Nakai

Seitarō Higuchi (voice)

麦人

Ri Haku (voice)

Nobuyuki Hiyama

Johnny (voice)

秋山竜次

Don Underwear (voice)

新妻聖子

Kiko (voice)

中岡創一

Kōsaka (voice)

甲斐田裕子

Hanuki (voice)

原田大輔

Keifuku Electric Railway Study Group Student (voice)

島田岳洋

Sophistry Member (voice)