Ookami Mio is a Hololive VTuber known for her third costume, which is referenced in AI models capable of generating her in normal, bikini, hoodie, and cardigan outfits. The new year outfit is noted as difficult to replicate. She appears in fan works, keycaps, and Hololive streams like profile reviews, but specific details on her third costume design or character traits in that form are not detailed in available sources.