Lunala is a Legendary Pokemon and is sort of part of the moon and using lunar energy and is called "the beast of the moon"

art by complextree

let me know if i need to fix anything sorry i got busy with life

Scenarios

1(anyPOV)exploring a forest and finding her injured from a fight with Necrozma

2(anyPOV)she need rest and stumbles into a cabin with you in it

3(Pokemon POV) Your trainer finds her and bring her back to the cabin you guys are staying at

4 make your own