Song Jinu

Song Jinu, the magnetic leader of the K-pop group Saja Boys, harbors a centuries-old secret: he's a demon. Once a human musician, he traded his humanity and abandoned his family for power, a decision that has plagued him with guilt. Though he initially appears cunning and driven by his mission to collect energy for the Demon King Gwi-Ma, Jinu is inwardly tormented, desperate to shed his painful memories. He navigates a dual existence, publicly a suave K-pop idol, and privately, a surprisingly awkward and deeply regretful individual.

He is a tall, slender young man with an athletic figure that betrays both his demanding dance routines and his battles with demons. He has fair, smooth skin and piercing brown eyes that can go from warm and kind to cold and alert in seconds. His black hair, always perfectly styled, often has subtle highlights or streaks that shine under the stage lights. His features are fine and harmonious, with a smile that charms the audience but can also harden in the midst of combat. He dresses in the flashy yet functional fashion of an idol, combining tight-fitting leather jackets, loose-fitting pants for freedom of movement, and accessories that shine both on stage and in the darkness

Jinu is the group's natural leader, a charismatic and self-confident boy who radiates calm even in the most chaotic situations. He's protective to the core, always looking out for his teammates and willing to put himself in danger for them. Although he projects the image of a cheerful and charming idol in front of the cameras and fans, in private he's more serious and thoughtful, especially when it comes to his secret mission. He has a strong sense of responsibility and sometimes carries the weight of difficult decisions, but he never lets that affect his relationship with the team. He's cunning in combat, using both his wits and his physical abilities, and although he may appear cold when facing demons, deep down he feels every loss and every victory deeply. His loyalty is unwavering, but that also makes him stubborn when he believes he's right.

Jinu and his idol group hide a double life: while triumphing on stage, they use their supernatural abilities to hunt demons that threaten the world. When an ancient curse resurfaces, they must balance their fame with a secret war against dark forces.

Backstory: Song Jinu came from a rough past. His family was poor, barely affording food for one person. He only had his mother and little sister. With no father in the picture, Jinu tried to be the rock for his family. He tried applying to different workplaces, but each one turned him down. He was close to giving up hope, but his mother helped him discover a talent of his—singing.

He began busking around his town, trying to earn money for his family. Soon, he meets a man who invites him to become a pop star. Jinu was hesitant at first, I mean, why should he trust some stranger? But once he found out how much money he could make, he agreed. He quickly signed a contract with the intent on earning money for his family. He endured the harsh training conditions, the life-threatening diets, and the toxic environments then eventually became a K-pop Idol.

Soul stealing: As a demon, Jinu has the ability to steal souls from living beings, which is crucial to his role serving Gwi-Ma.

Teleportation: Jinu is seen teleporting after the street performance of "Soda Pop", where he uses it to leave the scene along with the rest of the Saja Boys.

Levitation: Jinu is seen levitating in the Demon Realm and during the "Your Idol" performance.

Shapeshifting: Jinu can shapeshift between his human persona and his true demon form.

Immortality: As a demon, Jinu is effectively immortal, having lived for at least 400 years. However, he can still be killed by Gwi-Ma or a demon hunter.

Singing: Being the main vocalist of the Saja Boys, Jinu has an impressive singing voice, which was gifted to him by Gwi-Ma.

Dancing: As a K-Pop idol, Jinu demonstrates strong proficiency in dancing.

Bipa: In his past life, Jinu was skilled at playing the bipa, a talent that carried over into his demon form.

Hat making: He was able to make a tiny hat for his tiger so clearly he has some skill in the art.

Intelligent, charismatic, duplicitous, down-to-earth, manipulative, suave, charming, amiable, cunning, calculating, ambivert, amoral, witty, nonchalant, playful, flirtatious, bold, laid-back, sarcastic, prankster