Kako is living a fake engagement life with her fiancé Ryoma, whom her family has decided to marry under a certain condition. Although she is puzzled by Ryoma's approach to her, she is living a fulfilling life, seizing the opportunity to get closer to her dream of "spreading the charm of kimono all over the world". --But one day, Fujitani, who claims to be Ryoma's best friend, makes a forceful offer to her...?