Ost A Channel - Kotobuki Minako
Aoi Yuki, Kaori Fukuhara, Minako Kotobuki and Yumi Uchiyama — Humming Girl 01:28
OST A Channel - Kotobuki Minako — Summer breeze 03:50
[A Channel] Kotobuki Minako — Mermaid Sisters 03:42
Yuuki Aoi, Fukuhara Kaori, Kotobuki Minako & Uchiyama Yumi — Harukaze no Kagaku (off vocal) 04:24
[A Channel] Fukuhara Kaori & Yuuki Aoi & Uchiyama Yumi & Kotobuki Minako — Harukaze no Kagaku 04:24
OST A Channel - Kotobuki Minako — Mermaid Sisters 03:42
Fukuhara Kaori & Yuuki Aoi & Uchiyama Yumi & Kotobuki Minako — Humming Girl (OST A Channel ED) 04:57