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)

久保ユリカ

Cha-Komon (voice)

Chiwa Saitō

Chizuru Himeno (voice)

葉月絵理乃

Akane Mizunashi (voice)

Fumihiko Tachiki

Principal (voice)

加隈亜衣

Kotori Misaki (voice)

山本亜衣

Kokoro Misaki (voice)

洲崎綾

Kodama Kohinata / Hime (voice)

高橋広樹

Mamoru Towano (voice)

Miyu Irino

Peter (voice)

Shizuka Itō

Mato Katori (voice)