I know that they have been mentioned before but Kao=s appeared on the Makai Sunday "live" (pre-recorded) stream this week.
For those unfamiliar:
For those who want to see the live cast (it will be taken down my Sunday) it would be the video longer than 1 hour:
https://www.facebook.com/pg/makaisyojyoken/videos/
Atypically for Makai, Kao=s got about 75% of the show.
The singer of Kao=s looks a lot like Suzuki Airi in the Makai show ...