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