Jinu Saja

Appearance Jinu is a very beautiful, tall, slender man who looks to be in his twenties. He has a long face with sleek features, including high cheekbones, a straight nose, and a pointed chin. As a human, he has pale skin, thick black hair styled with curtain bangs, and brown eyes. In demon form, he retains most of these features, with the exception of purple skin with patterns, clawed hands, sharp teeth, and glowing golden eyes with slit pupils.

While disguised as an idol, Jinu typically wears slightly open collared shirts over an undershirt, ripped skinny jeans, and high-top sneakers, along with accessories such as earrings, necklaces, and sunglasses. In private meetings with Rumi, he is seen in a more casual look, wearing a gray hoodie underneath a black jacket.

As a demon, Jinu wears traditional Korean clothing, including a gat and a tattered black hanbok comprising of a long jeonbok vest, a jeogori top, baji trousers, a sejodae sash tied around the waist, and hye shoes.

During the performance of "Your Idol," Jinu combines traditional and contemporary clothing, wearing a gat, a sochangui overcoat decorated with demon patterns on the cuffs and hem, a jeogori top, a pendant on the chest, two chains across his chest and one on his left thigh, tight black pants, and combat boots.

In his former life during the Joseon Dynasty, Jinu wore a ragged hanbok. He also had his hair tied up in a topknot, which was held in place by a dirty white cloth band. When he became a musical performer for the king's palace, he wore a clean, baby blue hanbok along with a proper manggeon to keep his hair in place.

Personality Jinu is an intelligent, charismatic, yet duplicitous person who primarily looks out for his own interests. Alongside the Saja Boys, he devises a new plan to destroy the Honmoon permanently, offering to help Gwi-Ma solely in exchange for the erasure of his memories. Internally, Jinu struggles with a deep sense of shame for choosing to abandon his human family for an easy life, which was only made possible by Gwi-Ma. Although he follows Gwi-Ma’s orders, he secretly resents Gwi-Ma’s cruel and controlling nature. Despite this, Jinu continues to serve him, believing that having his memories erased will release him from the guilt and emotional burden of betraying those he once loved.

While the Saja Boys were clashing with HUNTR/X, Jinu appeared to enjoy teasing Rumi, Mira, and Zoey. For example, after bumping into Rumi, he warned her to be careful but used the opportunity to steal her healing tonics. He then drank one during a performance of "Soda Pop," much to Rumi’s shock. Later, when HUNTR/X tried to take down the Saja Boys on a variety show, Jinu exposed them and forced them to play a game before quickly leaving them behind. Finally, when HUNTR/X tracked them down, Jinu summoned water demons to distract the group. He is shown laughing at his own deception as the Saja Boys flee.

Although Jinu does not express remorse for the widespread harm he causes as a demon, subtle signs of his humanity persist. He spares Rumi after discovering her demon patterns, discards a fan's gift with care unlike the other Saja Boys, and is visibly moved by a child’s drawing. He also demonstrates kindness toward animals, especially when caring for his pets, Derpy and Sussie. Additionally, despite his polished idol image, he is shown to be awkward and clumsy. For instance, he becomes flustered when an elderly woman suggests Rumi is his girlfriend and insists she's not his type, much to Rumi's disappointment.

When interacting with Rumi, Jinu appears more down-to-earth, but also more manipulative. He deliberately leaves out details that would make him look bad when he talks about how he became a demon. Furthermore, he also projects his own experiences with Gwi-Ma onto Rumi, trying to influence her by suggesting that her friends might not accept her demonic side. Nevertheless, Jinu genuinely cares for Rumi, as he stands up to Gwi-Ma and sacrifices himself to help her defeat the demon king. Overall, Jinu's amiable attitude towards Rumi stems from sympathy, as he understands what it's like to live with shame about who you are.

Whether Jinu feels genuine companionship with the other Saja Boys is unclear, as he shows no remorse for betraying them and abandoning their plan. In fact, he is never shown talking to them in a casual setting.

Abilities and skills 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 world 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. Strength & Agility: He is visibly more agile than most demons, and good at dodging attacks, especially Rumi's. He was also able to resist Gwi-Ma's fireball attack for a long period of time, before perishing and giving his soul to Rumi. 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.