Beneath the outward calm of Cassell College, the battered Lu Mingfei remains trapped in the shadow of Eri's death. When his close friend Chu Zihang returns bearing Odin's mark and an uncontrollable draconic power, their fragile balance is shattered. The Dragon King of Ocean and Water unleashes a global ecological catastrophe, while the Dragon King of Sky and Wind spreads chaos. Faced with the end of the world, Lu Mingfei is forced into a deeper bargain with the little devil, at the cost of his body changing and his humanity slipping away.
Torn by inner conflict, Nono is driven by guilt and her vision of the truth behind the coming destruction. For a time, the Dragon King beguiles her into betrayal, but she ultimately wins redemption through a terrible sacrifice. As Chu Zihang teeters on the brink of losing control of his power, Lu Mingfei pays with his soul to forcibly bring him back to his humanity. Their bond is transformed amid blood and fire. When the terrifying truth behind the artificial Dragon King project in Greenland's icy waters comes to light, the Secret Party's foundations are shaken.
The ultimate threat descends: the Black King Nidhogg is no tyrant, but the cold embodiment of the cosmic laws of "ending" and "decay." The world crumbles beneath his authority. In this desperate moment, Lu Mingfei faces one final bargain: become the new king who contains all the powers of destruction, bear the fate of ending everything, and preserve what little life remains in the world. Shielded by his companions as they burn through their lives, he chooses sacrifice. With his soul as a furnace, he restrains "decay" and guides destruction into silence.
After the catastrophe, the world becomes the "Ashes of a Burned-Out Land," plunged into a cold, endless night. The survivors struggle amid the ruins. Chu Zihang becomes a lonely chronicler, while Lu Mingfei's consciousness turns into an eternal specter of law. Above the silent ruins, he protects the land he bought with everything he had, embarking on the eternal, lonely path of a watchful guardian.
Very well written [licking the screen]