Su Mu was originally a professional killer, living a life that everyone envied, but... He didn't need such a life of being oppressed by others, so because of his strong desire to survive, the male protagonist traveled through time gorgeously... (I agree with the time-travel, but... Who can tell me what this irritating system is about!!!) This article is updated irregularly, and may be abandoned, but I should stick to it until it is finished. After all, learning is the most important thing...
Intention: