Golden Scale Bone

Yinggu's elder sister died to save Xun Lan, a proton in Bijing. She hated the man who indirectly killed her sister. After she became the snake mother, she turned the man into a prisoner. But Yinggu was kind in her heart after all, and did not kill the man. In the constant experience and getting along, Yinggu untied the knot in her heart, and Xun Lan died for herself.