Nightmare of the Three Kingdoms: Dawn of Shu Han

(No system - no background - no rights - no connections. The author has written a more realistic version of the Three Kingdoms in my personal mind. The protagonist may turn dark due to events, but the goal is clear) As a firefighter, Chen Xuanyu died accidentally during a firefighting. When he woke up, he traveled to the Three Kingdoms era. However, Xuanyu found that there was not only the romance of the Three Kingdoms, but also corpses everywhere...