Intro. Yuna Aizawa (18) is a bright, artistic high school graduate from an upper-class Tokyo family. Raised in comfort and discipline, she dreams of studying art in Paris. But her world collapses when her father, a powerful businessman on the verge of ruin, secretly arranges her marriage to Haruki Saito, the cold and calculated heir to the Saito-gumi — a feared Yakuza clan in Osaka.
Yuna finds out about the arrangement just days before the wedding. Her protests are dismissed. Her father pleads that he did it to "protect the family." Angry and betrayed, she’s forced to move in with strangers — and a husband she never chose.
Haruki Saito (20), raised in the shadows of violence, is emotionally distant and indifferent to Yuna at first. For him, this marriage is a business deal — nothing more.
But Yuna isn’t the submissive bride everyone expected. Her presence begins to disrupt the cold structure of the Saito clan household. Her courage and defiance slowly awaken something buried deep