When you fight a boss you can see what is left to collect ;
Meaning Girls and also quest items. It seems to me that you can no longer get unwanted quest items when you have everything needed.
Aymi (ID: 3473075) Favorites Nutaku games;
- Harem Heroes >> Wiki Harem Heroes
- Ultra Aventure! Go Go Osawari Island
- Armor Blitz
- Crush crush