✔| Celestial training ~ (Nalu)

Natsu, Erza, Gray decides to go on a +6 years mission without Lucy. Lucy, wanting to make them proud when they'll come back decides to go training with her celestial spirits. With the help of the Celestial Spirit King (or 'stache-face), she'll train Celestial magic and she'll also, for a year, search Aquarius' key! Jo...