Fearless Contract: I Have Really Practiced Spear for 10,000 Years!

The Ten Thousand Realms Gun God system is being activated... A year has passed and he can survive for ten minutes without dying. Ten years later, he has been able to clear the first wave of targets. A hundred years later, headshots have become an instinctive reaction. A thousand years have passed, and even with his eyes closed, he can hear voices, identify locations, and shoot headshots in an instant. Five thousand years have passed, and the gun has become an extension of his body. Nine thousand nine hundred years have passed... When the 100 millionth headshot was achieved, the entire space suddenly stopped