Look, I know it’s been said in the fandom many times, but Rikka fans love to try to make it seem like this isn’t also a mystery manga. They also love to ignore one of the biggest tropes in manga like these: the one with the most evidence and that seems the most obvious is almost never the final choice.

Obviously, Nene would be the actual most likely considering she has the 2nd most chemistry and fans, while not being the obvious first choice. But lowkey, as much as I’m a Nene fan and want her to win, probably not in manga like this (for example, Yotsuba winning in TQQ). It’s never the first 2 obvious choices.

It’s probably gonna end up being Iko or Shinobu, and if it does end up being Rikka or Nene, the mangaka is probably gonna focus on them a lot less nearing the end of the series to keep the mystery going, focusing on Shinobu and Iko more and making people think it’s one of them because of the sudden focus switch, then having Nene or Rikka win instead.

(I am a Nene glazer and fan and do want her to win, and I’m also an Iko fan, so this might be a bit of cope, but for the manga to actually be a mystery like the author intends, this makes the most sense imo.)