Thirty-year-old Lin Qinghuan accidentally time-traveled to the beast world. Originally thinking she could start a brand new life, she was judged as a low-level female because of black spots left by a mysterious black mud pool. Facing prejudice and successive crises, she did not give up, relying on her wisdom and courage to find a foothold. A perilous situation led her to meet the black leopard beastman Cangya, and also allowed her to discover the hidden secret of this world. As Liefeng, Lingyue, and Lingchuan walked into her life, different ways of getting along made her reunderstand trust and affection. She insisted on respect and freedom, not denying herself because of status levels. On the road to pursuing the truth, she guarded her friends, helped the weak, and step by step changed everyone's views on her.