Natsu: This is my personal Fairy Tail style send-off party. People who leave Fairy Tail must understand three rules. One: Never release information that gives a disadvantage to Fairy Tail to anyone. Two: What was it again?
Mystgun: Never meet a previous costumer for personal gain.
Natsu: Right, right. Three: even if our paths differ, you must live life, as long as you are still strong. Never look at your life as something insignificant, never forget...
Mystgun: Those friends of yours that you loved...
Natsu: Did it reach you? If you have the spirit of the guild with you, there's nothing you can't do! I hope we can meet again, Mystgun.

Hiro Mashima