Hiro, under the happiness of his friends and having baymax back, is still always going to be a broken boy. Of course, pain usually fades over time, but the mark is always there, and nothing in the world can replace it. Hiro hasn't been botfighting for a while after Tadashi's death,and the night he does he can't decide if it is the best or worst thing thats ever happened to him. He meets an unpredictable girl, on the outside, a mysterious & dangerous champion of botfighting. But on the inside, much like Hiro, she's a broken girl with only herself and her love of robotics to depend on. Maybe broken people can fix each-other. -- reader is female, at a later date i may update and make it more gender neutral :)