Ye Bing, the female CEO of the Ye Group, suffers a sudden vehicle malfunction while traveling, causing her car to lose control and head straight toward the compound's entrance. At the critical moment, an ordinary security guard, the male lead, steps forward and uses his extraordinary skills to kick a stone bollard into place, stabilizing the vehicle and saving her. Several troublemakers arrive shortly afterward, but the male lead calmly takes them down. Ye Bing realizes that the danger was no accident and that a hidden threat lies behind it. During a company meeting, she makes an unprecedented decision to promote him to her personal security guard and suspends the negligent head of the security team in accordance with company regulations. The male lead helps her investigate the vehicle's condition, uncovering hidden security risks layer by layer while devoting himself to protecting her personal safety.