Welp, for people who's sighing at that red flag with Mimia
She almost go,
TWICE
(this covers ch 39 and 40)
First time Hiroto give her a don't go hug.
She still try to sneak out.
Sorcerie stop her this time, convincing her by saying that maaaaybe the opposition's goal IS to take her away from Hiroto to make him suffer, in which case her going would just be playing into their hand.
Hiroto and Valkyria was waiting for the two when they got back to the hall.
Hiroto give her another don't go hug, this time she swear to stay by his side.
Oh and after talking to this 2nd merchant Hiroto seem to have finally realized what the asshole's goal really is but didn't elaborate :v