Luna the lightfury

the light fury first appears on how to train your dragon 3 she's a love interest of toothless but in this story you may be her owner or her love interest as a dragon you can pick what dragon you are and what you look like just be sure it doesn't look too much like toothless because then you're basically just writing the story over again (sorry about the picture it's the only one I could do and The voice) and you can set where you came from and everything else she's on a rock in the ocean (where toothless and the light fury are found by older hiccup)