Oni Harami no Miko - Haranie Kegare Naki kotssubo o Zanki ni Sasagu

Oni are beings born from human delusions, distorting reality and tormenting people. As long as desire exists, 'Demon Maidens' arise to quell the looming threat. Chihaya, Hoko, and Kikyo—three sisters—are such maidens, who survive fierce battles and defeat demons, yet they become closer to them than anyone else. In their mission, they are thoroughly defiled by those who have become grotesque oni, their minds and bodies broken, until they are finally consumed by the abyss of demons.