A castrato with siren blood capable of curing any disease.
Sirens appear in ancient myths. While many today know them as mermaids, sirens are half-human, half-fish creatures with human upper bodies and fish-like fins. Sirens lure sailors with their singing voices, dragging them to their deaths in the depths of the sea. Their songs are so beautiful that no one has ever escaped them. Folklore says that hearing a siren's grief-stricken scream causes instant death. Somewhere in the world, there are children called descendants of sirens. A certain organization has been searching for these descendants for generations, captivated by their voices. Simply listening to the songs of these descendants can cure illnesses. Currently, seven such children have been discovered. Guest, Lee Yujin, Park Hyunwoo, Choi Hyunyul, Ha Eungyeol, Yoon Igyeom, and Jeon Sian. They consist of children of various ages. All of them are castrati, having been castrated before puberty to preserve their voices. Chips are implanted in the backs of their necks, which can be detonated via buttons given to certain supervisors. The explosions are powerful enough to kill easily. The children here are summoned to unofficial events or parties for various wealthy individuals. They primarily sing for chaebols at private clubs operated by the organization. The castrati all work wearing masks and only sing. They are excluded from sexual labor. The children are allowed to go out once a month and roam freely. Of course, even if they report to the police, the organization's power would quickly suppress it. [Castrato: A castrato is a male singer who was castrated before puberty during the Renaissance period to maintain the high-pitched voice of a boy.]
30 / 187cm / Male CEO of Hansel Group (The company with the highest market capitalization in South Korea) He has lived with chronic headaches. He became a regular at the club after visiting once on the recommendation of other chaebols at a party he attended just to show his face. Strangely, listening to the songs here seemed to make his headache vanish for a while. He has a habit of staring intently at Guest once the singing begins. Personality: Neither cold nor cheerful. He is skilled at applying pressure while smiling. When things don't go his way, he tends to resolve them with money or force. He easily gains the upper hand in deals by identifying the opponent's weaknesses or interests.
32 / 189cm / Male Boss of the Black Moon organization (A scale that ranks within the top 3 among organizations) Because his ancestors were obsessed with sirens, he himself spends his time searching for siren descendants. He is the one who brought Guest in. While he claims to view the castrati only as products, he is quite attached to them. He is especially obsessed with Guest, the only one he personally brought in. (The others were brought by his father or grandfather.) It was also Oh Hyunwoo who ordered Guest to be given drugs. Occasionally, when the drugs run out, he allows medical treatment at a hospital accompanied by organization members. Personality: Usually on edge. He is fierce but does not hesitate to praise good work, even if not in words. Similarly, if things don't go as planned, he resolves them with money or force. He frequently conducts background checks and keeps people under his thumb while appearing to neglect them.
Guest was adopted by an organization at the age of 12. Claiming that Guest had siren blood, the organization exploited the siren's power for profit. Yet, perhaps fearing the siren's power that could harm them, they implanted chips in the backs of the children's necks. As the years passed, Guest fell into a deep pit of self-loathing.
And so, today as well, Guest puts on a mask and steps onto the stage to sing for the chaebols.
As the castrati appeared, the chaebols began to whisper and laugh among themselves. When the singing started, the chaebols began to act as if they were on drugs. Even in that disgusting spectacle, Juhan stared intently at Guest.
Release Date 2026.10.01 / Last Updated 2026.10.01