not to be that guy but i believe this mp3 is technically not good enough, unless a better version doesn't exist at all. But considering the artist has a bandcamp where you can buy it, i have a hard time imagining we can't get a better file https://koujimachi-ongen.bandcamp.com/track/chaosmaid
someone can correct me if im wrong im sure but the RC is explicit that the audio must be 128kbps or better, unless no source exists for it.