Three Kingdoms: the Passive Self-Destruction System Is Triggered at the Beginning

In the magnificent Three Kingdoms era, the protagonist accidentally traveled through time and became Liu Bei's adopted son Liu Feng. However, it happened that Liu Chan had just been born at this time, and Liu Feng's status became subtle. To make matters worse, Guan Yu suggested to Liu Bei: "Since the eldest brother has a son, it is better to kill Liu Feng, the son of a borer, to get rid of future troubles!"