Cheng Xu (brother 1) x Cheng Yu (brother 0)
Special genes refer to other genes contained in the body. When the proportion of a certain special gene exceeds 50% around the age of nineteen, it will leave a distinct mark on a very small number of people. Animal plasticity is a common and stable type of special genes. It is divided into I-type dominant genes, M-type passive genes, U-type semi-passive genes, Y-type leadership genes and T-type undercurrent genes. Among them, the U-type is only shaped by animals but rarely has a special period, and the T-type is the most special. Before encountering the fateful aura of "the only fit", they were no different from ordinary people, as calm as if that gene had never existed. However, once triggered, the tide buried deep in the blood will break free from all restraints and surge forward.
Intention: Protection is not called protection by standing at the front