Here is the full list of all 53 Mystic Saga achievements.
Interactions with Dragon
Explored: Palace
Interactions with Sea Monster
Explored: Desert
Fish Market Collection complete
Interactions with Woodsman
Explored: Underwater City
Emperor's Dragons Collection complete
Explored: Harbor
Elemental Keys Collection complete
Interactions with Bandit
Explored: Mysterious Forest
Interactions with Sailor
Interactions with Crane
Explored: Floating Islands
Interactions with Ice Dragon
Interactions with Spider
Explored: Snow Fortress
Crystals spent
Amulets used
Explored: Cavern
Interactions with ghost
Explored: Swamp
Collections completed
Coins spent
Items bought
Interactions with Monk
Explored: Temple
Tea Ceremony Collection complete
Interactions with Tiger
Explored: Huntress's Lodge
Failed explorations
Tools used
Interactions with Sage
Explored: Library
Interactions with Wolf
Energizers used
Chests opened
Interactions with Merchant
Energy spent
Locations explored in silhouettes mode
Rewards received
Interactions with Stableman
Locations explored in night mode
Explored: Market
Quests completed
Level reached
Energy increased to
Locations unlocked
Explored: Smithy
Locations explored
Explored: Cabin
Imperial Regalia Collection complete