Here is the full list of all 28 Legend of the wizard achievements.
Create a role successfully
Survived a Natural disaster
Trainee Mercenary
Any character becomes a Wizard
Unlock any Bias skill
Exploring other Wizarding land
Join the Wizard organization
Comprehend any Rule
Synthesize any Equipment
Consume 500,000 magic crystals in the shop
Use identity skill 88 times in a single game
Rob 50 times
Open the treasure chest 12 times in a single game
Trigger identity skill 6 times in a single battle
Get 1 million magic crystals from gambling
Any characters reach the Legendary Wizard
Equipt all the parts
Complete 10 times five star Task in a single game
Get any Bias god level Meditation
Equipt any Coordinates
Any characters reach the Miracle Wizard
Read all the Books
Comprehend all the Fields in the game
Activate all the Bias in the game
Complete the game with all 14 identities
Get hidden item Magic Book
Any characters reach the Truth Wizard
Defeat the real Abyss Monster