The Story of the Jet-Black Mermaid and the Solitude of 18m Under

Ai Kayano

Futaba Ooki (voice)

Eri Suzuki

Hikari Kohinata (voice)

Saori Onishi

Ai Ninomiya (voice)

Yuuichirou Umehara

Makoto Ninomiya (voice)

Kikuko Inoue

Kino Kohinata (voice)

Yurika Kubo

Cha-Komon (voice)

Chiwa Saito

Chizuru Himeno (voice)

Erino Hazuki

Akane Mizunashi (voice)

Fumihiko Tachiki

Principal (voice)

Ai Kakuma

Kotori Misaki (voice)

Ai Yamamoto

Kokoro Misaki (voice)

Aya Suzaki

Kodama Kohinata / Hime (voice)

Hiroki Takahashi

Mamoru Towano (voice)

Miyu Irino

Peter (voice)

Shizuka Itoh

Mato Katori (voice)