Hey, I just thought of something : Why not add an option to know how many quest you still have left ex : I have compleate/fail 197 quest vs 207 quest in total. Do you think it could be a good add into the game ?
The amount of quests someone can get is no static number, because depending on choices on routes of characters, you can get more or less quests.
But if you want to check if you had all quests, or what you're missing, you can look at the quest list in the wiki https://renryuu.miraheze.org/wiki/Quests