About Me Traveling Through Time with an All-Powerful Weapon System

The protagonist Liu Tianyi was originally a college student, but due to an accident, he traveled to the world of immortality. And unexpectedly found that he had an all-round weapon system that could be upgraded. The enemy: Can any pistol or anything be faster than my body! The enemy a moment later: This can also hit me. It's such a fast hidden weapon. This is a master. This is definitely a master! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.