A Thing Hiding in a Erotic Cult

Synopsis

Tooru and his sister Yume end up in the hospital after a traffic accident that leaves their father brain-dead. Itou Yuuzen, an old acquaintance of their father, swiftly appears to take them under his religious cult's protection. The brother and sister, eager to start a new life, soon begin to suspect something sinister lurking beneath the facade of this religious cult... (Source: MU, edited)