Start with a Gun, Exit the Game with a God-Killing Gun

After he traveled through time, he obtained the system. This system is very impressive. Start with a gun and poke all the enemies at the beginning! This gun was upgraded and strengthened all the way, and later it turned into a god-killing gun! He looked at the God-killing Spear and fell into deep thought. Back then, it was just a cast-iron spear... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.