Reverse image search has her as an original character from the artist soya (torga) https://www.pixiv.net/stacc/torga https://twitter.com/Classic_S_ Tho the original post on twitter has been removed
Sorry I didn't realize your question >.< . But yeah the original post has been deleted, but I could find it somewhere in my pc maybe. Or maybe its still available in one of those booru site
