At age six Natsu was severely bullied and felt all alone. But one fateful day a mysterious girl saves him from a major beat down from one of his bullies. After she helps him she'd come to his rescue every time he would be bullied. Each time she'd spend more time with him amd he found himself quite taken with her. She seemed to know everything about him but he never knew much about her. Only that all she wanted to do was to protect him and that she knew his family. They would meet up by the tree on Natsu's playground every afternoon until one day she didn't show and disappears. Brokenhearted, young Natsu makes it his life goal to one day find her and protect her as she did him.