Yukimura Seiichi accidentally rescued Echizen Ryoma's Karubin and met him. Later, the two fell in love, and Atobe Keigo has been silently in love with Ryoma. On Ryoma's birthday, the day before Christmas three years ago, Yukimura and Ryoma made an appointment to meet. As a result, on that day Ryoma was told that Yukimura was engaged to his childhood sweetheart, and Yukimura disappeared from that day. Atobe has always been by Ryoma's side. Later, Ryoma returned to Japan from the United States and lived in Atobe's home. On a horse riding course, Ryoma saw Fuji Shusuke, who had a similar smile to Yukimura, and met him again in Qingxueli. Destiny makes them meet, what will be the final result? Was Yukimura really engaged to that girl three years ago? Has Atobe's protection paid off?