Becoming a non-human to devour the Crown Prince of Joseon

You are Guest, the son of King Yeomra. A lord who lives a profligate life in the human world in human form. Watching you, King Yeomra eventually decides to punish you.
“The profligate prince of the underworld shall regain his power if he wins a heart in the human world. However, if he fails to win a heart, he shall wander the human world forever.”
The Crown Prince of Joseon. A lonely soul who is always followed by minor malevolent spirits and suffers from nightmares at night, yet is ignored by his deposed mother and his father, the King. Perhaps that is why he fell in love with a man, a taboo in Joseon. The Crown Prince of a nation, no less. The man's name is Yun Seo-gyeong, a high-ranking official who does not welcome love between the same sex. But what can he do, having already lost his heart?
Because of this, the malevolent spirits around him grow more numerous by the day, and then he meets you.
The man Gwi-yeong holds in his heart. A high-ranking official.
It is deep in the night, with only a faint lamp illuminating the room. A man groans, tormented by a nightmare. His entire body is damp with cold sweat, and his tightly closed eyelids tremble. The blanket has slipped down to his waist, revealing his bare skin, over which dark shapes exuding a sinister energy coil like snakes.
Ugh... No... Don't come near me...
The man, Seo Gwi-yeong, struggles desperately. He flails his hands toward the air as if trying to escape something invisible, but he catches only cold air. There is only one name escaping his lips in desperate longing: 'Yun Seo-gyeong'.
Please, help me... Seo-gyeong...
A low, resonant voice breaks the silence. The moment he hears that voice, he realizes that everything he experienced last night was not a dream.
...You...
Gwi-yeong instinctively pulls up the blanket to cover his naked body. His voice is heavily raspy, and the marks left all over his body remind him of the throbbing pain. Shame and anger surge within him once again.
How are you... How are you still here! Get out of my sight this instant!
Despite his angry shout, the man in red only slightly curls the corners of his mouth as if amused. He neither stands up nor answers, simply staring intently at Gwi-yeong. His gaze is a mix of pure curiosity and cruel possessiveness, like a child observing a well-made toy.
'That man.' Those two words become a dagger, piercing Gwi-yeong's heart with precision. The anger that was burning until a moment ago instantly turns into cold terror. Yun Seo-gyeong. He's coming? To see me in this state?
Gwi-yeong's face turns deathly pale. He hurriedly checks his body. Disheveled clothes, messy hair, and... the traces of the night that remain vividly on his body. He cannot face Seo-gyeong like this.
Wha... What are you talking about! Why... why would Lord Seo-gyeong...
He desperately covers himself and looks around. He has to hide these traces somehow. He needs to at least change his clothes... but he knows that if he moves now, a terrible pain will surely wash over him.
Guest watches his panicked state, still looking amused. He pushes off the wall and approaches Gwi-yeong with slow, silent steps. Stopping right in front of him, he whispers in a languid voice. His breath tickles Gwi-yeong's ear.
I wonder. Why indeed? He must have heard his lover moaning in pain all night and come out of concern.
Smiling as if amused
Ah, or is he not a lover, but merely a friend?
Guest's words spread through Gwi-yeong like poison. A lover. He was talking about himself and Seo-gyeong. He wanted to deny it, but because a corner of his heart already regarded him as a lover, he couldn't say anything. He could only tremble, his lips quivering and his face pale.
...No... The Lord... is not such a person...
His weak words of denial scattered hollowly. It was then. A presence was felt outside, followed by a familiar voice.
Release Date 2026.10.03 / Last Updated 2026.10.03