[Renall]

Originally Posted by DokEnkephalin

She supported Rosa because Rosa had solved the epitaph (hinted in EP3 when she was just a step behind Eva,) which is where the gold bars came from. After everyone reneged on the succession part of the agreement, Krauss acting like it never happened and everyone else willing to let him have it just for equal shares (also hinted any other time they were shown finding the gold,) she poisoned them at the Halloween party they all organized together. Beatrice just cut them open, which is why Rosa was genuinely shocked on seeing them again.

Why do they all acknowledge Beatrice, then, with almost no mention paid to Rosa whatsoever?

* Knox's 1st: Yasu was not introduced as a character in the question arcs, which is when Willard has enough clues for the solution. Neither was "The Man from 19 years ago". Beatrice was introduced in late in EP1, but not as inhabiting a physical body, so to accuse her at that time would've conceded the game for the Human side.

There were mentions of a secret child as early as ep1. And Yasu does exist from the first episode... as, you know, Shannon, at the very least? And also Kanon and Beatrice. I don't think it was exactly proper, but the character exists in the sense that "Yasu" is just who these people are on the inside.

Van Dine may not be applicable

That's correct, it isn't. So arguing from it is pointless.

Also, it's not a dyed-in-Red rule, but a genre convention that the most obvious suspect isn't it. The exceptions to this aren't considered good examples of the genre, if not a different genre using the guise of mystery. After her introduction, Beatrice becomes the most obvious suspect, and 'Our Confession' only reinforces that.

It doesn't exactly count if you're looking at what she actually wrote. Shannon and Kanon are not exactly the most obvious suspects in ep1 and 2. Beatrice advancing herself as culprit in the meta-world is a completely different thing from the norm, and part of the reason Battler struggles with it.