Zhou Yan was burdened with the ancient curse of "Swallowing Heaven's Bloodline". When he awakened, the livestock in Black Rock Village were all gone and he knelt down to worship the mummy. In order to find his missing parents, he sneaked into Dahuang City to join the Black Bird Division, but witnessed his own bones and sharp claws piercing his father's heart in the trial mirror "Light Tracing". Following the animal skin scroll left behind by his father, he sneaked into the underground prison "Sansang Wugenmu" and found that the crystal coffin of his mother Li Zhu was guarded by Qingyuan, the saint of the Black Bird Department. When the truth about the one hundred thousand hanging coffins feeding Zhulong's right eye was revealed, Qingyuan claimed that his parents voluntarily sacrificed flesh and blood to awaken his bloodline. In the decisive battle of Kunlun Ruins, Zhou Yan's parents, who had been transformed into puppets, attacked Zhou Yan. Qingyuan took Zhulong's eyes to open the door to Guixu, but a shocking twist occurred - Guixu was actually Zhulong's stomach pouch. The remnant souls of his parents severely injured Qingyuan at the cost of self-destruction. Zhou Yan used blood and bones as a monument to seal the dragon's stomach, and a whisper came from the depths of the reborn mountains: "The stomach sac... Is just a larvae..."
