After her engagement was broken off, Otoha traveled to Hawaii to mend her broken heart. There, she was involved in a car accident but saved by the dashing young heir, Kyosuke Nagamine. Even after the accident, he remained devotedly kind, and his selfless care gradually healed her wounded heart. Just before returning to Japan, Kyosuke proposed a two-year contract marriage—!? Though it was a sham, Otowa, already beginning to be drawn to Kyosuke, found herself agreeing without hesitation.