God-Level Assassin, I'm the Shadow

Synopsis

In a world where people sleep and enter a realm abandoned by God, Qin Feng, who sacrificed everything for his sister, faces betrayal from her. However, fate offers him a second chance, sending him back nine years before the abandoned world emerges. This time, Qin Feng decides to abandon his sister and concentrate on becoming the strongest. (Source: Kuaikan, translated)