Dark Love 1

Adapted from ClockUp's erotica video game. A yakuza stronghold and an orgy cult are discovered as part of Tetsuya's inquiry into a high-end hotel in Tokyo. On rich silk sheets and velvet chairs, the rich and powerful participate in sex acts so depraved that just witnessing them is likely to turn a man into a monster. But the true purpose of this cult is a pact with evil energies that can literally turn Tetsuya into an inhuman demon.