Rebirth at the Doomsday: My Sister Died on the Day I Was Reborn

[Rebirth at the end of the world + incomplete system + high-intensity melee combat + emotional doomsday + revenge] His legs were cut off by his teammates and left to die among the corpses. Open your eyes again and go back to the day when the end comes. The first thing is to find my sister. It's too late. Only a charred corpse was left. [Reverb System: Unlock progress is 3%. The attack comes with afterimages of past lives. [Contact events related to past lives, unlock progress, and gain abilities. The person who killed the zombies in his previous life. In this life, he will still come back to pay for his blood debt. "Xiaotang, brother will definitely find a way to resurrect you." But the mystery left behind by my sister has just begun.