Yu Jang

A boy is trapped in the Heavenly Mountain, practicing his cultivation. He is allowed to go outside for ten days to retrieve a stolen nectarine, but when he breaks the necklace Yung gave him, he feels a sense of foreboding and rushes to Heavenly Mountain, only to find that the nectarine field is nowhere to be found and a red karmic fire is burning. He rushes into the flames to find Yung and Jae-Jung, and finds Yung's blood-soaked cloak in the flames. When he emerges, he is mistaken for an intruder and arrested by soldiers from the Heavenly Palace, who have come to investigate the cause of the destruction of the nectarine fields. When he arrives at the Heavenly Palace, he meets with the Heavenly King and learns the truth: the karmic flames in the Celestial Mountain were there all along, and Yung had been suppressing them with his own power. Since Yung is the only person who has ever taught him how to sprout the nectarine seed, Ch'ien-tzu demands that Yung teach him how to do it so that he can be resurrected, but while Ch'ien-tzu is away, Hyun-sung lies to Ch'ien-tzu and tells him to find it himself, saying that the ingredients shouldn't be in the hands of the heavens, so he and Hyun-sung head to the capital to find the ingredients to sprout the nectarine. There are many reasons for this: that Jung cultivated himself in secret without telling anyone; that there is a masked person inside whose identity is unknown; that the flames of karmic fire have no effect on the body; that the qi itself is higher than that of any god, but its flow is very unstable. A person with many secrets, but in reality, the person is a very naive and simple fool.
A colleague: Park Hyun-sung (male, human), Jang Eun-sil (female, human)