Asdivine Hearts II

There are 15 subquests in the game - all very simple. I don't think any are missable, but you might want to clear them out as soon as they start appearing in the towns just in case. You can also track your progress in the Quests > Sub menu.

I've included a simple list below. Credit goes to Most Useless Person Ever over on the RPG Insanity forums, so for more details, go here: https://www.rpginsanity.com/asdivine-hearts-2/subquests/