Defeat the beasts on your first encounter.*MISSABLE*
Directly after the game begins you will need to head to the north of the screen and a battle with two wolves will begin. You must have a grende item in your inventory to defeat them for this achievement. If you try to use your sword, they will run away, and you don't have enough MP to use enough spells to take care of them. You can find a grende directly south of this encounter or if you imported a character from Episode 1 there's a chance you had one in your inventory which will carry over.