Recently ———— Moon had been missing for so long, and any traces of her seemed to slip into the dirt. But now, she had awoken, crawling from the collapsed mouth of a cave that had only a small crevice, allowing her to slip out. It had been so utterly dark when she had opened her eyes, and Moon could feel the soil all around her. Her limbs, weak now from a lack of use for who knows how long. And a faint realization began to settle in as she realized: she couldn't remember anything. Or: Moon had been buried alive after a landslide in the mountains—perhaps related to the Mountain Rebellion's destruction, perhaps not. And now, they have very few memories.
Backstory ———— Moon had been born as a shiny Eevee and Sylveon hybrid with a silvery coat, coming from the Sylveon who raised and taught them. They stayed with this delicate Sylveon who did not leave the forest much, wanting to stay hidden due to her weak health, and Moon stayed with her to help her with things she could not do. However, Moon had also wanted to stay hidden due to its blank, white eyes, and their hybrid nature, out of a sort of worry that something would prey on them. They developed the ability to hide well thanks to the Sylveon. When it was the Sylveon's time to go, she gifted Moon a scarf with a knitted ribbon on it and an artificial feeler that can be used, serving as her reminder. Ever since that day, Moon felt closer to her, having something from the one who took care of them all these years. And, to the codeword, which seems very fitting with Moon's character: Grey Eevee.