Kyungjoon, a police officer grieving the loss of his girlfriend, seeks solace in caring for his house plants and fighting crime. However, when a supernatural investigation involving a cult arises, Kyungjoon is thrust into a world filled with demons, succubi, and monsters, including the tyrannical demon king known as "Lord Cain." Suddenly, Kyungjoon learns that Cain requires mana from a special "door" located inside him in order to survive, but the question remains: how will Cain unlock this portal to stay alive? As events unfold, Kyungjoon finds himself at the mercy of these dark forces, unable to escape their grasp.
Please note:
- English is the primary language for all platforms, with Tappytoon as the official translator.
- There are different levels of censorship depending on the version, with "R19 Uncensored" containing fully-drawn genitalia.