The Ghost King Is My Vanguard

The world says that Taoist masters suppress ghosts and spirits, and the righteous path stabilizes the world. Jiang Xuan was born with an incomplete Dao body, his life as fragile as paper, the most ridiculed discarded disciple of the entire Taoist sect, destined not to live past twenty. But no one knows that in his palm lies a yin-yang imperial contract spanning ten thousand ages. On the night when fierce demons emerge, a hundred ghosts run rampant, the righteous path is helpless, and the human world is on the verge of collapse, he uses the contract to summon the supreme lord of the underworld, dormant for ten thousand ages. That is the primordial ghost king Ye Yuan, who slaughtered all heavens and made gods and Buddhas tremble, the supreme fierce sovereign who pressed the three realms to bow and made all ghosts prostrate. But on this day, as the sea of blood surges and ghosts and gods quake, the ancient ghost king, before all evil spirits and all Taoist masters, kneels on one knee and bows his head. 'My lord commands, all ghosts receive their titles.' 'Forever as your vanguard, protecting you through every year without harm.' Everyone laughs at Jiang Xuan's madness, saying that a crippled body commanding a fierce god will surely suffer backlash and die horribly. But no one knows—it is he who willingly binds himself in chains, giving up eternal supremacy, waiting in endless solitude for millennia, only to protect his rebirth for one lifetime. The righteous path is hypocritical, the heavenly Dao is cold. Since heaven and earth do not tolerate him, let the ghost king slaughter all hypocrisy and let all ghosts redefine the world. The Taoist master upholds the Dao, the ghost king paves the way. In this life, he will defy fate and become a god, ruling both yin and yang, overturning the eternal heavenly Dao! — Description from novelcodex.org