|In-Game Cover | Regular Cover|
|Unlock Requirements|| Clear Story 1; Chapter 13, Part 3. |
Must be at least Rank 25
Pythagoras☆Fighter is sung by Pythagoras Trio's Voice Actors, Yuusuke Shirai, Tsubasa Yonaga and Takuya Eguchi. The song lyrics are written by Erika Masaki (真崎 エリカ, Masaki Erika), and the song was composed by 野井洋児.
Pythagoras☆Fighter was originally released within the game. If you clear, Story 1; Chapter 13, Part 3 it would be available within the normal lives. Pythagoras☆Fighter is included within the Pythagoras☆Fighter - Single as the main song. However it is also included within the i7 (Album) that was released on August 24th, 2016.