>>3759276
Liddy and Soo turned Liane into a living one note Firis meme that most people tend to forget that back in Firis' game, Liane was actually a proper character with her own subplot and character arc.

Since LiddySoo is about tying up most loose ends in the Mysterious series, the implication here is that during the gap between Firis and LiddySoo, Liane eventually figured out the truth.