In the last summer vacation before graduating from high school, Fukuji Yong Tai (Fukuyama Runita) and Xiao you Liuhua (Makoto Neida) still live a quiet life, but there seems to be no further sign of their relationship. During this period, Liuhua's sister Shihua found a job in Italy and decided to move her family overseas. In the face of Liuhua, the sister of a severe secondary school patient, Liuhua, who even had a problem going to college, Shihua, as a sister, was afraid to leave her alone in Japan. Knowing that he was going to be separated from Liuhua, too Yong was filled with anxiety. Worried about the couple's Danshengya (Akizaki Chixia) came up with a bad idea, so the boys and girls embarked on an elopement trip all over Japan.