Doomsday, My Weapons Can Evolve Infinitely

The end of the world has arrived, zombies are rampant, order has collapsed, and despair has enveloped the land. The protagonist Jiang Xun was betrayed by his lover, oppressed by evil people, and was accidentally bound to the [Doomsday Weapon System] when he was on the verge of despair. From ordinary slingshots to armor-piercing powerful bows, from steel nails to energy marbles, he kills and evolves all the way. The arrow pointed at him was invincible. With the most desperate start, he swept across the doomsday and reached the top of the wasteland.