>>89456073I don't think this bussy (female) smashing needs more of a setting than the usual "Tokyo Vtubers" (standard setting rules of being vaguely in the future/past, and roommates looking exactly the same as their models, with fantasy races maybe just being a common thing).
Actual trap bussy (male) smashing only really needs a minor setting addition of either "suisei (male) was a special exception that got into hololive" or "suisei has been really good at hiding it".