High school student Shuichi Konoe is getting married to his childhood friend. However, his best friend, Yui Hana Karasuma, whom he thought was a man, is his partner! Shuichi was at first taken aback by the sight of Yui Hua, who has grown into a beautiful girl after 10 years since their first meeting. ) ( Im still the same as back then. ( Ill always love you. ) Because we are best friends, we can understand each other even if we don say so. We can do whatever we want without worrying about each other. As their comfortable life together continues, the two of them suddenly get closer in a different way than in the past. They are more than just best friends, and they are becoming more and more conscious of each other, but they are still unable to take the next step.... They are in love with each other, but still fresh. This is the ideal romantic comedy for couples!