This isn't original. It's Marie-Joseph from Sakamoto Shinichi's Innocent Rouge, ou can se that even in the source page. But, just for reference here's a link to the MAL page: https://myanimelist.net/manga/93699/Innocent_Rouge

I would add the missing tags myself, but don't want to fumble it, since I've never done that before.

Sorry about that. I've added the copyrights and the character.