Fairytail A Nalu Fanfic

Hi Fairytail fans! This is a fanfiction story of Fairytail where Master Makarov disbands all the current teams and makes Mirajane and Cana make new pairings. They need to infiltrate coração de demônio and Demonii Anima guilds so that the magic council overlooks the damages they make for the next two consecutive years. Fairy Tactician Mavis Vermillion makes the plan. All they need to do now is succeed it.
When Gildarts and Cana go to decipher a Zeref ruin will they open the E.N.D book. What will happen then?
Will everyone accept that demon! Is it easy to defeat the guild and what they are planning and what happens after that find out.

This story is completed in another three parts
1) FairyTail a nalu fanfic
2) Vacation time
3) Grand Magic games
4) Missing Fairies