MR – Mixed – Reality by the development of AR technology – Society in which infrastructure applying system is popular. Application of MR technology, new sports mainly school girls, its name is also a circle _ bout. Circlet bout which became a popular sports grew rapidly to not only the school but also the entertainment involving the area, and the star player showed excitement to become a national popular person. Meanwhile, one transfer student appeared in St. Union School, a former powerhouse school that turned into a weak small team that is even dangerous even for the department. I was fascinated by Circlet Bout and came from the mountain in Wakayama, her name is Yasuka Sasaki! Will you be able to become a savior of St. Union School? What?