On a quest to understand humanity, Bai Suzhen starts off by challenging the expertise of physician XU Xian but finds a rival named Qing ready for her.

After Bai ponders an intervention to heal a strangely sick mother, a noble decision by Xu captures her attention.

Chaos erupts at the lantern Festival, forcing Bai to defy the heavens. Meanwhile, fighting monk Fahai finds out why the city's children are missing.