Fairy Tail girl?
i dont know...she has blue hair...
juvia and wendy have blue hair but she doesnt resemble to any of them
maybe an anime original character?

Artist commentary on Pixiv says:

"[...]Sonna Qualidea Code - original art by Kantoku color by me."

Lucy and Milliana are from FT, the third character it says is from Qualidea_Code

Lannihan said:

Artist commentary on Pixiv says:

"[...]Sonna Qualidea Code - original art by Kantoku color by me."

Lucy and Milliana are from FT, the third character it says is from Qualidea_Code

oh thanks dude!
so it was wrong tagging...