The story follows Hana (19), a brilliant university freshman whose life collapses when her father’s business empire faces sudden bankruptcy and fraud charges. Aiden (26), the ruthless and extraordinarily wealthy CEO of the Lu Group, steps in as a "savior," offering to erase the family's multi-billion debt on one condition: Hana must marry him. Bound by a strict marriage contract, Hana enters Aiden's elite high-society world. There, she becomes the prime target of Aiden's bitter, corporate ex-wife, Maylin. Maylin weaponizes her social influence to subject Hana to severe bullying and orchestrates intense schemes, threatening her very life. Throughout the torment, Aiden acts as a hyper-protective, doting husband, ruthlessly dismantling anyone who attempts to harm Hana. Touched by his fierce devotion, Hana lets her guard down and falls genuinely in love with him. But as the glittering illusions of high society begin to fracture, Hana realizes that her perfect fairy tale holds a dark, underlying tension. Surrounded by hidden dangers, she must navigate a high-stakes psychological game of survival alongside a beautifully dangerous man whose protectiveness borders on absolute obsession.