In the Doomsday System, I Started with a Broken Nail

I was blocked in a toilet stall by zombies when a loading notification for a doomsday game popped up on my phone. The rotten finger claws pierced the door panel, and the blood bar flashed crazily in the field of vision. "Beginner's benefit: The first kill will reward you with a lottery roulette." I picked up the mop and poked it through the zombie's eye socket, and the system beeped cheerfully. "Congratulations on obtaining the SSS-level growth weapon embryo!" The golden light dissipated, and a rusty nail lay in the palm of his hand. Looking at the nail icon marked "evolvable" in the weapon column, I also saw the number of draws showing "-99 times". "System, do you call this welfare?" A new roar came from outside the cubicle, and I clenched my nails and sneered. "Okay, I'll pay this debt with the zombie's head." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.