When a violent virus tears apart the world order, a grassroots milk bottle overturns the destiny table with his mouth and syringe. Lin Xiaobei, who was originally an unknown boy selling fried rice on the street, was hit in the head by the mysterious "medical system" one midnight. From then on, holding a scalpel in his left hand and Gatlin in his right hand, he became the most outrageous medical soldier in the seventh Bureau of the Chinese Secret Service - codenamed "Milk Bottle".
When he first entered the battlefield, he was either performing cardiopulmonary resuscitation on the enemy or complaining about the tactical mistakes of his teammates. He was either rescuing high-level officials by diagnosing fluoroscopy, or stabilizing the morale of the soldiers with cold jokes. But when those infected with "Berage Syndrome" pounced like wild beasts, when the mission failed, his comrades were dying, and his energy ran out, his skill library began to cool down and his mouth stopped working.
The turning point occurred during a deep-sea rescue. He discovered that there was a darker experimental conspiracy behind the virus, and that he was just a living piece on the chessboard. In order to restart the system, he had to accept the energy crystal sent by the Middle Eastern princess Aisha - at the cost of unknown risks and a crisis of trust.
In this era where technology and madness coexist, he is a joker and a god of war, a doctor and a warrior. But when the world is on the verge of getting out of control, when the choice is before us: save people or kill the enemy? Love one person or save all sentient beings? Can human beings still hold on to the final bottom line?