i remember something about flowers but i haven't read any work with that theme. i think it was gardenverse
theres a kdrama called Color Rush where one group of people have color blindness can only see monochrome and the other group are probes and the colorless cannibalized too
there's also Guideverse, where some people are "espers" with superpowers but using their powers makes them go insane unless they get the services of "guides." Cakeverse is entirely new to me, i gotta admit.
Nameverse! There are a couple manhwas with nameverse
ABO (our dear omegaverse) is the classic, ofc, and I've seen dom/sub-verses before. But... cakeverse? That's one hell of a turn. Does anyone know of other "x-verse" genres out there? This seems like a strangely interesting subculture lol