The ART virus swept across the twin planets, and humankind was divided into the purifiers "solution" and the combatants "trapped". Symbiosis is the only hope for survival in the end of the world. The solutioner who was trapped in the core city in the last apocalypse was the only destiny solution for the trapped person. With a super high matching degree of 99.99%, The two people gradually became dependent on each other for life and death from initial resistance.
The future solver 200 years later came back with the memories of the end of the world to guide the current solver to awaken his abilities and crack the truth about the virus; while the trapped person broke through from the initial state of delayed awakening to the top level of combat power under the purification and fetters of the solver, and stayed with his life.
Intention: Use companionship as shield, use purity as light