Lin Yan was originally just a little person struggling to survive in troubled times. After an accident, he woke up and became the most inconspicuous handyman in the enemy's headquarters. No one takes him seriously, anyone can scold him, and anyone can step on him. Just at this moment, the system for killing enemies to become gods was quietly activated. Killing enemies can gain experience, skills, intelligence fragments and combat capabilities. The harder you kill, the faster you grow. During the day, he bows his head to serve tea and water, and at night, he stalks and harvests heads in the dark. He fights his way from the kitchen, the archives, and the infirmary to the core of the security agency. He carries out the most ruthless game in the most humble position. Originally they just wanted to survive, but in the end they kept killing and killing, and the situation in the entire enemy-occupied area was turned upside down. When the higher-ups at the headquarters finally noticed, the handyman who was always hunched over and smiling had become a knife hanging over everyone's heads.
