In the process of exploring life, human beings gradually defeated disease and death. In the year 3044 of the Talor Era, the "Derot Project" implemented by the Bastok people (Orientals) took the first successful step, and the first successful immortal experimental subject was born. Academician Hypnos Lu Ishvich, the general leader of this project, has become a new benchmark in biology. In the next three years, the first experimental subject was in good physical condition and developed completely in the direction expected by his superiors. Experimental subject BK-12 has become mankind's hope for eternal life. In the year 3044 of the Talor Era, the "Derot Plan" was successfully implemented. In Taro Era 3048, Experimental Subjects BK-13 and BK-14 were successfully released from the warehouse. In Tallow Era 3049, the beneficiaries of the "Derot Plan" began to appear, and they showed a crazy upward trend. In the year 3051 of the Tarlow Era, the technology mastered by mankind finally returned to its prehistoric peak. ... In 3066 of the Talo Era, the Chervis War broke out. During this war, Experimental Subject BK-12 died in the battle to save Academician Ishvich. In the year 3594 of the Talo Era, the Talo Empire, ruled by the Ilesal people, went through a tortuous 500 years in human history. The eastern coast suffered from the nuclear weapons remnants of the Chervis War, resulting in a large amount of radiation. The tops of the once prosperous technology towers fell into desolate ruins; the western basin became a gathering place of man-made monsters. After 500 years of efforts to eliminate and suppress the area, humans still dare not set foot there. The Taro Empire, which has returned to the level of technology in human prehistory, is struggling to survive on this pan-continent. It seems to be burning the last bright years of mankind.