Field

When you interact with a Campfire, the fire will light, and you can access the Campfire Menu and use Fast Travel. Also, approaching a Campfire will restore your HP.
You can view Character Stories in "Fairy Tail Diaries" from the Campfire Menu.

Plue's duplicates are scattered all over the place.
When you find one of Plue's duplicates, you will receive a Plue Pawprint stamp at the Campfire Plue Shop.
You can earn rewards based on how many stamps you've collected.

Talk to Merchants near Campfires to access their shop.
Raw Material can be exchanged at the shop for Consumables or Lacrima.
You can exchange for new Lacrima if you have Synthesis Recipes.

Crystals give you Ether Crystals, which are used to power up your Magic Origin.
Small Crystals can be destroyed with a Field Attack. Larger Crystals can only be destroyed with an Attack Burst.

After defeating enemies in a Magic Pool, you can obtain Ability Pieces.
Ability Pieces can be equipped to a character with an open Lacrima slot by selecting "Character" in the Main Menu and then "Equip Lacrima."

Area Bosses refer to the most formidable enemies across each region.
After you defeat an Area Boss, locations of Treasure Chests, Memos, and Crystals in the surrounding area will be saved to your Area Map.

Mysterious Memos of an unknown author are occasionally found lying around.
Something interesting might happen if you collect all the memos scattered across the land.

After clearing a story, you can view character models and listen to the game's BGM by interacting with the bookshelf in the Guildhall.