Satoko Kirigaya possesses every luxury a noblewoman could desire—except time. As her life slips away, she resolves to secure a worthy marriage and honor her father. Yet everything changes when a cold-blooded assassin abducts her, prompting a reckless proposal: "Marry me, and we'll have everything." Shinpei Goto agrees, but his feelings spiral into a perilous fixation. Caught between obligation and a passion that threatens to destroy them, Satoko must make an impossible choice.