Some fans confuse Kuroinu: Kedakaki Seijo wa Hakudaku ni Somaru with the earlier 2012–2013 Kuroinu ~Choukyou ~ OVAs (which had 4 episodes). Those are a different adaptation covering a different story route. No, Episode 3 of the 2021 version does not exist under any alternative title.
2012 • 6 Episodes. Season 1 of Kuroinu: Kedakaki Seijo wa Hakudaku ni Somaru premiered on January 27, 2012. In the land of Eostia, The Movie Database Kuroinu: Kedakaki Seijo wa Hakudaku ni Somaru (2012) - IMDb Some fans confuse Kuroinu: Kedakaki Seijo wa Hakudaku
: If you prefer to own episodes or can't find them on streaming services, consider purchasing or renting from platforms like Amazon Prime Video, Google Play, or Apple TV. 2012. In the land of Eostia