Here is the full list of all 37 Tree of Savior (English Ver.) achievements.
Ate food for the first time from the Refreshment Table
Dismantle legend item
Obtained Arch Stone
Added Socket to the Equipment
Purchased item from the Contents Point Shop
Visit the Fedimian Public House
Changed Haircut at Beauty Shop for the first time
Tried Offering
Obtain Vaivora weapon
Tried to enhance equipment
Added a Companion
Achieved Enhance Skill attribute Lv.100
Breakthrough the cage of Skiaclipse
Fed the Cat in Klaipeda
Sold an item at the market
Transcended the equipment
Used Soul Crystal to ressurect
Character became incapable of battle
Changed Class
Gave Like to someone
Equip item in the body costume slot
Purchased item from the Mercenary Badge Shop
Cleared Level Dungeon for the first time
Durability of the main weapon became 0
Achieved first Adventure Journal point
Sent a friend request
Successfully changed character's gender for the first time
Destroyed equipment by enhancement
Participated at Team Battle League
Acquired Nukella for the first time
Clear Lepidoptera Junction: Legend (Hard)
Clear White Witch's Forest: Legend (Hard)
Clear Assister Dungeon Stage 40
Draw Gem
Fail to enhance at +15 with an Anvil (Enhancing with silver, golden, ruby, and diamond anvil does not count)
Repair item for the first time
Drew a Legend Assister Card