Sinopsis
When mysterious alien spheres start invading the world, high school students are called upon to join the world's first war against extraterrestrial forces.
Pemeran Utama
Kim Ki-hae
Kim Chi-yeol
Shin Myung-sung
Im Woo-taek
Shin Hyun-soo
Lee Chun-ho
Lim Se-mi
Park Eun-young
Ahn Do-gyu
Guk Young-su
Kim Min-chul
Doh Su-chul
Episode
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