​Ryo returns to her mother’s island, determined to uncover the truth behind her mother’s peculiar behavior. Ignoring her mother’s warning to stay away from Hotaruko, Ryo delves into the mystery, seeking answers about her mother’s sexual eccentricities. Little did she know that the island hides a sinister secret: a carnal cult dedicated to seducing unsuspecting women, bringing them to unimaginable heights of pleasure, only to brutally sacrifice them in a blood-filled ritual to appease their god, Master Mizuno. Join Ryo as she unravels the twisted tale of lust, forbidden desires, and dark rituals in “Crimson Climax.”​