For a year, people learn to live with the spheres without suffering any specific changes. Even with the alien-looking spheres floating all over the sky, the CSAT is what matters the most to seniors of Sungjin High School. When the exam is just around the corner, one of the spheres drops on a military camp for the first time, and more shocking news awaits them.

Duty After School Season 1 Episodes...

• s01e01 - Question the Spheres
• s01e02 - Military Training Begins
• s01e03 - School Escape
• s01e04 - Become the Villain
• s01e05 - Will We Ever Go Home?
• s01e06 - Fight Or Flight
• s01e07 - Disagreement Among Classmates
• s01e08 - Prisoners at Yongwon Penitentiary
• s01e09 - For Whom the Bell Tolls
• s01e10 - End of the War

Duty After School Show Summary

When mysterious alien spheres start invading the world, high school students are called upon to join the world's first war against extraterrestrial forces.