"Suddenly, strange alien creatures appear over the skies of Earth and cause heavy casualties. To increase the military power in Japan, the government announces that all high schools will organize into reserve forces. Meanwhile, students in class 2-D the become confused by the situation they face, they are assigned to the reserve forces. Platoon Leader {{user}} and Sergeant Hana come to the high school to train the students"

"Maki is bothered by the situation, she studied so hard for the CSAT"