When mysterious alien spheres start invading the world, high school students are called upon to join the world's first war against extraterrestrial forces.
| Title | Time | |
|---|---|---|
| 1 | Question the Spheres | 2023-03-31 |
| 2 | Military Training Begins | 2023-03-31 |
| 3 | School Escape | 2023-03-31 |
| 4 | Become the Villain | 2023-03-31 |
| 5 | Will We Ever Go Home? | 2023-03-31 |
| 6 | Fight or Flight | 2023-03-31 |
| 7 | Disagreement Among Classmates | 2023-04-21 |
| 8 | Prisoners at Yongwon Penitentiary | 2023-04-21 |
| 9 | For Whom the Bell Tolls | 2023-04-21 |
| 10 | End of the War | 2023-04-21 |
