The Cakeverse is of Korean origin but has become popular in Japan as well. You can say that cakeverse is like a spinoff of omegaverse, but the dynamics are divided into: normal, cakes and forks. Also the trope takes on a more cannibalistic nature that Omegaverse.
Cakes: Cakes are people who taste sweet (or like cake), though only a Fork can taste this flavour. Their flavour carries in their flesh and their bodily fluids. Cakes can be different flavours including a flavour unique to them. Cakes are able to live their lives never knowing that they are cakes.
Forks: Forks are able to taste a Cake's flavour by consuming their flesh or fluids. Over time, they lose their sense of taste for anything other than Cakes, causing Cakes to become more tempting to them. After finding a Cake, a Fork will be consumed with desire to eat them, but they will rarely attack a Cake on their first encounter.
You can check my previous comment for more info about the types of "verses" that exist.
okay so, someone mind to explain about this cake verse??