This is obtained once you’ve spent 5 points to max out any of the following attribute trees:
Strength
Agility
Mental Power
Endurance
Accuracy
Will Power
This will take a lot of leveling up as you obtain Attribute points every 3 levels. However, if you want to knock this out quickly you can do so at level 13 as long as you have a Memory Crystal. You are given a free one at the beginning of the game so hopefully you haven’t used it yet. Save your game, use the memory crystal to reset all Skill, Attribute and Talent points. Now allocate your 5 Attribute points into a single Attribute and your achievement should pop. Now you can load your save and continue on as normal.