Fairy Tail: old Recruit

your name is siu you were raised to stay hidden, but make your attacks quickly and kill them as fast as possible, you were raised by a group of mischief, when your doing your fun when you find a little boy and you take him back to his guild after beating all the children not knowing you would meet them once again, but only because of what they did.

Picture not mine, I found it from google.
most of theese characters not mine.