Makino Tsukushi has not spoken to Doumyouji Tsukasa in almost a year since he went to New York. With the encouragement of the rest of F4, she decides to take the trip to America to meet with him and finally to know once and for all where they stand. She does meet him, but he appears to be a completely different person, stubbornly insisting he and Makino have nothing to do with each other any more. Makino returns to Japan, and when Doumyouji finally comes back from overseas for his birthday party, his mother announces his unexpected engagement to oil heiress Okawahara Shigeru, much to the shock of F4, Makino, and himself. He now faces the choice between his duty to his family's company and losing the person he truly cares for.