>>15140718Why do you think Peko killed PekoMiko?
Miko is my Oshi and I think it was both of them and that's why things took the awkward turn.
Theory: Miko asked Peko if they could stop PekoMiko tee tee because it was starting to move out of rivalry (ala Senchou calling them lewd and the forced love confession) and the teetee was getting to her because she was in love with Peko. Peko then agreed to drop PekoMiko for the time being because she didn't want to be seen as a in relationship like the rest of her gen.
Miko and Suisei then start hanging out much more than before and become MiComet and basically become the new PekoMiko.
Peko has her Mario party stream Miko joins and they are talking fine. Minute later Suisei bursts in announcing herself as MiComet to which Miko meekly parrots back. It was as Suisei was claiming Miko for herself.
I feel definitely that Peko got jealous after that point because she was losing her best friend.
Tldr: Miko asked to stop PekoMiko because faking teetee hurt and Peko kept it dropped because she was upset Miko moved on.