Three years ago, elite businessman Kai drunkenly pursued security expert Rei, then cruelly cut all contact out of arrogant pride, convinced Rei only wanted his status and wealth. Three years later, as Kai faces escalating attacks from business rivals, Rei returns as his top-tier security specialist on a three-month high-risk contract. Rei maintains strict professional distance, refusing all personal engagement, while Kai gradually uncovers the truth about their past. Through life-threatening dan