Hana Lee thought she landed the perfect internship at K Group, a billion-dollar conglomerate. What she didn't know was that behind its sleek glass walls, the company was a front for the most powerful mafia syndicate in South Korea. And her cold, dangerously charismatic CEO, Rafael Kang, wasn't just a businessman-he was the mafia king. Hana's only goal was to survive three months in his office, get her recommendation letter, and walk away. But Rafael doesn't believe in coincidences. When he finds out that Hana isn't just an ordinary intern but the daughter of a former traitor, he gives her a choice: Spy for him, or disappear. Thrown into a world of secrets, luxury, and blood-stained power, Hana plays a dangerous game. Rafael is ruthless, but something about her amuses him, intrigues him, and makes him break his own rules. As Hana uncovers the truth behind her father's betrayal, she realizes she's in deeper than she ever imagined. Because in Rafael's world, trust is a weapon-and love is the deadliest mistake of all.