Arc 1The Sky Screen and the Immortal Herbs
Nan Huai'an traveled to the past and took young Bibi Dong as his disciple, helping her gain Soul Rings, an External Soul Bone, and powerful immortal herbs. He cured Dugu Bo’s poison and evolved the Dugu family’s Martial Souls, while Spirit Hall and the Clear Sky Sect clashed over the Ice and Fire Yin Yang Well.
- Nan Huai'an appeared decades in the past, met six-year-old Bibi Dong, accepted her as his disciple, and revealed that he was a Soul Emperor with six Soul Rings.
- Nan Huai'an awakened Bibi Dong’s Twin Martial Souls, helped her absorb a Sickle-legged Demon Spider Soul Ring, and gave her the Six-Winged Purple Light Wings from a Purple-Winged Spider Emperor.
- Nan Huai'an defeated Dugu Bo and revealed that he knew about the poison afflicting the Dugu family, then promised to cure him with a herb in Sunset Forest.
- Nan Huai'an led Bibi Dong and the Dugu family to the Ice and Fire Yin Yang Well, identified its immortal herbs, and gave Dugu Bo and Dugu Xin Jade Dragon Clear Essence Ganoderma to remove their toxins.
- Nan Huai'an gave Bibi Dong two immortal herbs to strengthen her Spider Emperor Martial Souls as Spirit Hall and the Clear Sky Sect moved to seize the valley’s treasures.
- Tang Longyang and Tang Wuyuan attacked Spirit Hall’s guards, but Dugu Bo poisoned them and fought alongside Yue Guan and Gui Mei until Golden Crocodile Douluo arrived.
- Golden Crocodile Douluo killed Tang Wuyuan and Tang Longyang, while Dugu Bo and Dugu Xin evolved their Martial Souls into jade-green dragons after taking the immortal herbs.