Kei
| Kei | |
| Language | Japanese |
| Title | Released | Role | As | Note |
| Little Monica Monogatari | 2001-09-21 | Vocals | Kei | Image song "La Fate ~Tanoshii Matsuri" |
| Snow Drop ~First Step in Spring~ | 2010-12-31 | Vocals | Kei | OP "START" |
| Kei | |
| Language | Japanese |
| Title | Released | Role | As | Note |
| Little Monica Monogatari | 2001-09-21 | Vocals | Kei | Image song "La Fate ~Tanoshii Matsuri" |
| Snow Drop ~First Step in Spring~ | 2010-12-31 | Vocals | Kei | OP "START" |