Three Kingdoms: The Self-Destruct System Triggers from the Start

In the turbulent age of the Three Kingdoms, the protagonist unexpectedly transmigrates into Liu Feng, Liu Bei's adopted son. But Liu Shan has just been born, and Liu Feng's position has become precarious. To make matters worse, Guan Yu advises Liu Bei: "Now that you have a son of your own, there's no reason to keep an adopted son like Liu Feng around. Better to kill him now and prevent future trouble!"