Xie Lan had poor health since he was a child and was abandoned by his parents. Later, he picked up a black cat on the way to the Academy of Sciences. From then on, his life became different. When the end of the world came, species around the world evolved, and this cat also turned into a man with a narrow waist and long legs. CP: High IQ, sick, weak scientific researcher, attacked by ancient giant beast with X force value exceeding the limit
Mission: Revere nature and protect the environment