All songs of Takagi-san (Rie Takahashi)
- Ai Uta
- AM11:00
- Anata ni
- Arigatou
- Asu e no Tobira
- Chiisana Koi no Uta
- Deatta Koro no You ni
- Gakuen Tengoku
- Hana
- Himawari no Yakusoku
- Iwanai kedo ne.
- Jitensha
- Joyful
- Kanade
- Kaze Fukeba Koi
- Kimagure Romantic
- Kiseki
- Konayuki
- Over Drive
- Santa ga Machi ni Yattekuru
- Snow Magic Fantasy
- STARS
- Tentai Kansoku
- Yasashii Kimochi
- Yume de Aetara