When does My Fairy mode unlock?

I have played 4 missions now and have yet to unlock My Fairy mode. When does this unlock?

Fairy Mode can be unlocked, in adventure mode, within G8: Defeat the Darknut Forces. The first faerie can be found in any of the normal pots that gives ruppees, so take some time and farm a little within that one. Also, if you press the "Y" button, you can change what shows on the map, allowing you to see if there is a Faerie, clothing, or food; along with rewards as well.

In the map right above the starting area in adventure mode where the goal is to kill the Darknuts, i found the fairy in the South Field Keep in a yellow pot. it's in a bottle but it's like a drop.