Circlet Princess VOL.1-12 End

Many years into the future, advances in technology and virtual reality have changed Japan, leading to many applications in the real world, such as security, businesses, transportation and even the development of a new sport called Circlet Bout, an event played by many schools across the country. Mixed Reality, the technology used in Circlet Bout, can be used to store data about the players, such as their academic skills, and generate weapon for matches.

By sheer coincidence, Yuka Sasaki gets involved in a Circlet Bout match against Chikage Fujimura, the best player in Japan. Despite her inexperience, Yūka holds her own against Chikage and both players develop a respect for one another. Yūka gets inspired to become a CB player and, two years later, she transfers to a school in Tokyo in order to accomplish her dream. Upon her arrival, she finds out the school’s CB club has been closed down, so she sets out to re-open it with her new friends.

随着AR技术的发展，一项技术被研发成功，其名为混合现实系统，简称MR系统。使用MR进行的校园虚拟战斗“Circlet Bout”作为一项运动在女高中生中流行开来。这项运动的人气甚至冲破了学园，热潮席卷了各地，明星选手甚至能拥有国民级的人气。

另一方面，圣同盟学园Circlet Bout部已经从过去的辉煌衰落到将要废部，主人公佐佐木优佳为了参加这项运动，从和歌山的深山中来到了东京的圣同盟学园。优佳究竟能否成为圣同盟学园的救世主呢！？