While cleaning the chapel, Himeko encounters a girl, named Chikane, who resembles her sister in face and name, impaled by a sword. When awakened, Chikane doesn't remember anything... She has amnesia. Himeko is thankful to God for giving her another opportunity to see someone like her sister again, but she is then later attacked by another girl who says she possesses the "dragon's cry" within her body. Chikane vows to protect Himeko.