One day in the mountains of Fiore a kid woke up with no memories of who he was. 





I do not own fairy or its characters i only own my oc

Fairy Tail: Ice dragon slayer

ACTION

ADVENTURE

HAREM

So where should I start. Fist of it is not a bad Story. Still I would recommend to rewrite it. The greatest Problem I see is that you rushed the story to get to the Canon as quickly as possible. You can take your time with that since it's more important to have a good story with maybe more background information and world building even though I know most people who will read this story know the Fairy Tail world. 
But now comes my most important point. Character development and relationship development. I will just say it bluntly: There is absolutely no character development described detailedly. Same with the relationships. You just metion the end result. Let's not concentrate on the development of the MC becoming a cold persona. More important is the relationship with the guild and with his "lovers". Making a good harem story is not easy, but just saying that female characters just fell in love with him out of the blue isn't going to cut it either. I would have wished for the development of their feelings to be described. More fight scenes would have been nice too, but maybe you have them reserved for later.
Anyway long story short, the reason I recommend a rewrite is not out of hate. The idea of your story is not bad at all, and the story was generally nice. But I would have wished for more details and development and describing emotions and their development.
With that being said, peace out!