Well, i have never seen your story, maybe i could think about a good name if i did it, but even though i think there is no better person to create a name than you the creator of the story, who knows more about it than anyone, dont worry about creating the more legendary name you can think of, some of the most catching names i know are simple names, but so memorable that sticks to our head like glue, for example: McDonald's, Google, Dragon Ball and the sweetest name i ever heard: Bohemian Rhapsody, i dont even know what it means, but is an unforgettable name.
So just relax, no pressure and you will surely find a suitable title.