All songs of Kotoha
- Baby Sweet Berry Love (feat. Kotoha)
- Bokura no RTA
- Cosplay Shitai no! (feat. Kotoha)
- Cotton Days (feat. Kotoha)
- Fukutsu no Idol (feat. Kotoha)
- Futarikiri ni Nacchatte yo [It's Just the Two of Us]
- Halloween Night Party
- Happy Christmas Party
- Hidamari Days
- Himitsu no Valentine [Secret Valentine]
- Hitonatsu no Error [One Summer of Error]
- Hokori Takaki Idol
- Honto no Watashi (feat. Kotoha) [Hontonowatashi (feat. Kotoha)]
- Kareshi Jiman (feat. Hanon & Kotoha)
- Kienai Ondo
- Kirai ni Sasete
- Kiseki (feat. Kotoha) [Miracle (feat. Kotoha)]
- Kono Sekai no Tanoshimi Kata
- Maid☆Shijou Shugi (feat. Capi, Hanon & Kotoha)
- Mawari
- Natsu wo Yobu Koe (feat. Kotoha) [Voice That Calls for Summer (feat. Kotoha)]
- Only feat. Kotoha
- Otona Kinryouku
- Romantic Wedding (feat. Hanon, Kotoha & Capi)
- Tarinai (feat. Kotoha)
- Twin Tail Mahou Shoujo [Twintail Magical Girl]
- Watashi no Koto Suki Desho? [Do You Like Me?]
- Zenryoku Start Line (feat. Hikaru Aomi, Himeno Kikyou & Miyu Wasurena)