The Forgotten Spirit

Not everyone is guaranteed tomorrow, which is why everyone should live life to the fullest. And as Y/N watched the fight unfold, she only wished she had...

Y/N has been on Earthland for years and finds herself growing weaker by the days, remembering what it was like before with her spirit friends. Y/N was known as Noctua in the Spirit World, the owl spirit that has been forgotten over the years. When Y/N comes across Fairy Tail, they offer to help her regain her strength, not knowing there was nothing they could do. However, she immediately senses the other spirits and runs out. Why would Y/N run from the other spirits? If she is a celestial spirit, where is her key? If she's growing weaker, why hasn't she gone back to the spirit world? Will Fairy Tail be able to save her before it's too late?

(Not my art)