Instructions
Fight monsters and complete quests to gain experience. Early in the game, you'll have the easiest time killing slimes and snails, both of which are abundant in the beginner stages.
Increase your level by gaining experience. At level eight, the game will ask if you want to become a wizard. Do not accept the offer, as wizards cannot become mechanics.
Reach level 10. After you level up, the game will ask you to select a new class. Choose the mechanic class.