Hyotei Eternity (氷帝エタニティ) is a band consisting of Atobe Keigo, Ootori Choutarou, Hiyoshi Wakashi, and Mukahi Gakuto. They have released two singles, both of which were used as ending themes.
- Fujouri (Original Karaoke)
Sakamichi no Hate eEdit
- Sakamichi no Hate e
- Sakamichi no Hate e (Original Karaoke)
- Party Time
- Party Time (Original Karaoke)