Ling Yuan's stethoscope is used to hearing life and death, and Li Yanxing's gun is used to hearing gunpowder smoke.
One is fighting for his life on the operating table, and the other is chasing the murderer in the dark alley. They are originally different paths, but they become entangled in blood.
He prepared gauze and waited for him to return, and he waited for him to perform the operation with warm coffee, thinking it could warm each other's coldness.
Until the bullet penetrated the familiar heartbeat - the white coat was stained with blood, and the remaining heat from the gun barrel dissipated, they finally failed to get out of their respective battlefields.
Purpose: Patriotism