Full transparency: I have no idea if the character tag is correct. I combined a few factors to make my best guess: 1) This artist has no posts marked as Original. 2) The mole on her ass would seem to be a key identifying characteristic, but my search of mole_on_ass + brown_hair + long_hair -original didn't come up with anything definitive. 3) This artist loves drawing Rance characters. 4) Some of the Twitter replies mentioned Magic, and looking through the catalog of characters on the AliceSoft wiki, she seems to be one of the few long brown-haired girls that could fit the profile. She's also a major enough character (as far as I could tell. Other than watching some OVAs, I've never consumed Rance) to warrant some fanart.