Heavenly Demon Reborn! (Korean: 신마경천기, RR: Sinmagyeongcheongi) is a premier martial arts (Wuxia/Murim) manhwa and web novel written by Okyu and illustrated by Gom-Guk. It is widely considered a "modern classic" in the reincarnation genre, praised for its gritty atmosphere, logical power progression, and its deep dive into the philosophy of the Demonic Cult.

The story follows Unseong, a disciple of the righteous Spear Master Sect. After his master is framed for practicing forbidden demonic arts and brutally executed by the hypocritical "Righteous Factions," Unseong is also killed. However, he is reborn in the body of a child candidate within the Demonic Cult. Driven by an absolute thirst for revenge against those who betrayed his master, Unseong embraces the "Way of the Demonic Demon," rising through the brutal, death-defying ranks of the cult to eventually become its supreme leader: the Heavenly Demon.

Alternative Names and Titles

Heavenly Demon Reborn! / Chronicles of the Heavenly Demon / 신마경천기 / Sinmagyeongcheongi / Hebaenlli Demon Ribon / Chroniques du Démon Céleste / Oneulman Saneun Gisa