Weakness Mark: I Will Kill You with One Strike in the Last Days

The cataclysm is coming, rifts in the void tear the sky, monsters are rampant, and human civilization collapses. Li Xiaofei, an incompetent person at the bottom of Jiangcheng Base, trades his life for half a piece of compressed biscuit every day. He was abandoned by his teammates during a bait mission and was surrounded by zombies. At the critical moment of life and death, he awakened his only ability - **Weakness Marking**! The weaknesses of all monsters turned into beating red marks in his eyes; the rewards for each kill appeared in light blue text. The monster that others tried their best to grind to death, he hit the weak point with one knife and killed it instantly! Specialize in picking monsters with high rewards, including source energy crystals, natural and earthly treasures, and rare materials, so you can earn treasures until your hands are weak! From the useless bait that was stepped on by others to the "weakness killing god" that makes monsters frightened, Li Xiaofei used a rusty kitchen knife to carve out a counterattack path for the incompetent. But what he didn't know was that this apocalypse was never a natural disaster. And his ability was the only backdoor in that experimental system.