淫らな邪教に巣喰うモノ•Midara na Jakyou ni Sukuu Mono

A Thing Hiding in a Erotic Cult

Tooru and his sister Yume end up in hospital after a traffic accident leaving their father brain dead when suddenly Itou Yuuzen appears out of nowhere and takes them under his "religious cult's" protection. Is this the beginning of a new life for the brother and sister or something is hidden behind the facade of this religious cult? (Source: MU)