Japan, where the declining birth rate is progressing. There, the "Basic Law for New Countermeasures against Declining Birth Rate" is implemented, which analyzes the genetic information of citizens and notifies them of the best marriage partner. A matching system at the genetic level makes men and women fall in love at first sight. Truly the red thread of fate of science. A woman connected to you at the genetic level will appear. Experience the best sex of your life.