*DON'T SPEND YOU PEARLS ON BUYING UNNECESSARY ITEMS*
Tea garden - on Level 3, 1 pearl is given for each character.
Allies - you get 10 coins, 1 onigiri OR 1 pearl at random.
Lottery - castle lottery may give you 1 pearl or more as a gold prize. Choose the 10 Draws option. * BUT DON'T SPEND ALL YOUR COINS ON THIS as you need to leave some for the main & event stories*
Events - battles will get you Pearls for a certain amount of servings for each character. Normal story event will get you 3 pearls for being top of your allies (must have 5).