Castle Story 12/30: Duel of Fates | event information on page 1

[ShibuyaCloth]

I have done the Adventure several times. A card pops up saying "+1 Duel Practice." I don't see any increase of anything I have in storage, nor any new addition of items needed for event. This is a glitch that needs to be remedied immediately.

This is usually the case, it is a counter for S8. You won't see any item, just an invisible drop.