Kannazuki no Miko Temporada 1 Episódio 8

During yet another outing with Sōma, Himeko searches for a present to give to Chikane since she knows something is not right with her. Upon returning to Chikanes mansion, Himeko is shocked to find that the Lunar Priestess has joined the Orochi, becoming the Eighth Neck. Chikane sexually assaults Himeko.