So, you get to talk to Aldiytha to get little blurb reminders on stuff after the event quest. When you ask her about flower crowns, the WoL apparently has a reaction which causes her to speak the following:

Aldiytha: ...You look as though you have something on your mind. Do you perchance know something I do not concerning the flower crowns?
Aldiytha: I see, you are not at liberty to say... I understand. Not every adventure is a tale that can be shared.
Aldiytha: But if I am honest with you, that only makes me more curious to know. I hope you can one day tell me of this secret adventure.

I assume this has to be like, ShB or EW MSQ relevant if they're being oblique about it, but I don't really recall anything about flower crowns in either. Anyone know what it is referring to?