Haruka Kuzo—an introverted 18-year-old high schooler with a love for books and silence—never expected his life to spiral into chaos. With no parents and only his strict but caring grandfather, Mr. Shion Kuzo, the head of the powerful SMT Group, Haruka's life was calm, predictable, and quiet. That is, until an unexpected arranged marriage turns everything upside down.
His bride? Mahiru Shina—his best friend, someone who knows all his secrets but shares none of his feelings. Due to complicated business and family alliances, both are forced into a contract marriage. Now, they must live together… in the same house, the same room, and even the same bed.
But it’s not that simple.
Haruka already had a girlfriend, Tokasa. Their sudden breakup leaves scars. Meanwhile, another girl, Sora, who silently loved Haruka for years, watches her dreams fall apart. As feelings clash and hearts break, Haruka and Mahiru must confront their true emotions.
Can two best friends find love in a marriage that started without it?
Will the love triangle ever be broken—or will it destroy them all?