I'm looking for Kohashi's royalty free music which some vtubers use for their starting soon screens/outros
but when I search around all I can find are dead links
https://x.com/kohashi_ch/ (dead)
https://ko-fi.com/kohashi_ch (dead)

I tried digging deeper with waybackmachine and found some snapshots from 2022 and 2023, where their name on ko-fi changed from kohashi to kou/catvtuber, then I found direct links to these:
https://x.com/catvtuber (dead)
https://www.youtube.com/channel/UCx2Wx_R5jT-IBP57l1eNPgA
and using that name I found this:
https://x.com/Lazee__B/status/1807392616172114099 (commission for a vtuber model in 2024)
...and that's where I ran into a dead end.

Anyone able to help? I only care about their music