@onthedot So Yanagi is a "forgotten love rival" from a few chapters ago. He also likes MC's brother Ayato, but doesn't really have a chance according to BL world rules. MC thinks Yanagi will have "better luck in a spin-off."
So that's why Grandmother started looking younger a few chapters ago. That's horrible. But normal jellyfish don't really feel pain the same way humans do.
I think Bura and purple bunny girl used to be in a relationship. Purple might be trying to "help" bunny family, but in a twisted way. Is that omurice in the preview?
I think son bunny's problem is that he doesnt really like the taste of cilantro. He did say that it stank. Seems my guess about them becoming pata was true.