Expanded Girl Trio

In 2016, a huge cocoon suddenly appeared in the capital area of ​​Japan. Several months have passed since it was first confirmed, and its true identity is still unknown. People call this unknown cocoon Phenomenon. The only thing that can be understood is that people absorbed into the Phenomenon will start to go crazy and kill each other. The Japanese government was anxious about this and organized a special force to deal with the sudden appearance of Phenomenon. The Expanded Reality Special Strategy Group Special Attack Team - also known as the Expanded Girls Trio - is under the jurisdiction of the Ministry of Internal Affairs and Communications' Information Management Agency.