Hey Daddy,
Does progressing time in game open up any new quests or such? You should have at least, 2 new story quests for Yona (and a bunch of other stuff regarding the alchemy minigame).
If not, can you drop your save here? You can use a file sharing site like Google Drive or MEGA etc. Just make sure the link in not private etc.
Saves will look like "5-2-LT1.save". The first number of a save indicates their page number and the second the save slot itself. So 5-2-LT1.save would be the 5th page, and save slot #2. Android your saves will be located in "ahitr_storage"
Yeah, I thought because I didn't complete the side quests completely makes the new quests doesn't appear, that's why I'm completing all the side quests right now, but I'm already completed all the alchemical quests as you mentioned it long time ago. And if it still doesn't appear after this, I'll get you know. Btw, do you want only 1 save data or all of them?