Your Birthday and your New Guild

You came to the fairytale guild at age 5, you left at age 8 to go on a quest to train and find your past. One day you came back, Natsu was SO happy to see you, he saw you got stronger and tested your power. You held back, but he knows how strong you are. Be for you left the elders told you, that you would be the strongest Dragon Slayer.

You are emotionless and VERY STRONG!!!!
I Don't do lemons!
I take requests.