Kaiki Shinsei -recurrent nova- / Natsukaze Nostalgia is the second collaboration single released by Sato Hiromi and KOTOKO.
The lead track was used as a theme song to celebrate the 10th anniversary of the Onegai☆Teacher series.
Tracklist[]
- Kaiki Shinsei -recurrent nova- (回帰新星 -recurrent nova-)
- Natsukaze Nostalgia (夏風ノスタルジア)
- Kaiki Shinsei -recurrent nova- (回帰新星 -recurrent nova-) (off vocal)
- Natsukaze Nostalgia (夏風ノスタルジア) (off vocal)