Two ultra-wealthy families-longtime rivals in business, politics, and influence-have spent decades sabotaging each other. Lawsuits, hostile takeovers, scandals... neither side can fully destroy the other without mutual collapse. They reach a final stalemate. The solution: merge power through marriage to stabilize assets, avoid external threats, and quietly end the war. Complication: Both heirs are sons. Instead of abandoning the plan, the families double down-because legally, financially, and strategically, this union still secures everything they need. This is not about romance. It's a corporate treaty disguised as a marriage. But the problem is deeper both hate each other to the core, one is cold and reserved with strategic mind (Lee Felix) and other is impulsive boy with no limits in his life, doing whatever he wants as his life is surrounded by scandals and gossips , the real BAD BOY (Hwang Hyunjin)