Hey there guys, I need help tracking down the character in this

File: 2hx98nq.png (319KB, 577x417px) Image search: [Google]

319KB, 577x417px

Hey there guys, I need help tracking down the character in this picture. It looks very familiar to me, but I'm not getting any ideas no matter how much I think about it and every search I do seems to lead to a dead end thanks to all the edits made to the picture. If any of you know the source and care to tell then I'd really appreciate it. I think it's from an anime, but if not it's probably from a visual novel or something else along those lines.

The mask has had some alterations clearly, but most of the people I've talked to about it seem to think that it itself was a part of the original design and wasn't edited in.