I have the OST Soundtrack for Ballroom e Youkoso, but can't find this song.
The OST starts at roughly 7:20 for ep 14 when Chinatsu and Akira are arguing,
and at roughly 12:00 for ep 19 when Akira has the guy apologize. I would really appreciate if someone could find me this song.
Here is a fan-made cover of the song for reference: https://www.youtube.com/watch?v=rXBjv-6pcIo