If you’re familiar with Discord and discord bots then you’re familiar with Mudae and the variety of multiplayer games that it hosts. You may even have tried one of its gacha character roulette games and tried to win yourself a waifu like Celestine Lucullus here.
Celestine is a character in the series Kuroinu: Kedakaki Seijo wa Hakudaku ni Somaru, an erotic anime and game. This character from Kuroinu is apparently one among the 60,000 anime/game characters in Mudae’s database. While some netizens are busy claiming and taking the waifus for themselves, Rioko seems to have “claimed” this character through cosplaying her. Clearly, not only has she owned this, but she probably now owns a lot of her fanboy hearts and souls as well.