Overview
When mysterious alien spheres start invading the world, high school students are called upon to join the world's first war against extraterrestrial forces.
Cast
Kim Ki-hae
10 episodes
Shin Myung-sung
10 episodes
Shin Hyun-soo
10 episodes
Lim Se-mi
10 episodes
Ahn Do-gyu
10 episodes
Kim Min-chul
10 episodes
Kim Su-gyeom
10 episodes
Ro Jong-hyun
10 episodes
Woo Min-kyu
10 episodes
Yeo Joo-ha
10 episodes
Ahn Da-eun
10 episodes
Lee Yeon
10 episodes
Kwon Eun-bin
10 episodes
Moon Sang-min
10 episodes
Choi Moon-hee
10 episodes
Kim So-hee
10 episodes
Ji Min-hyuk
10 episodes
Oh Gi-gwang
10 episodes
Shin Su-hyun
10 episodes
Hong Xa-bin
10 episodes
Shin Hye-ji
10 episodes
Lee Soon-won
10 episodes
Hwang Se-in
10 episodes
Oh Se-eun
10 episodes
Kim Jung-Ran
10 episodes
Im So-yun
10 episodes
Lee Jung-min
2 episodes
Shin Jae-whi
2 episodes
Sung Ji-ru
2 episodes
Park Jung-yeon
2 episodes
Lee Jang-won
1 episodes
Son Ji-na
1 episodes
Yoo Dam-Yeon
1 episodes
Jang Hyuk-jin
1 episodes
Shim So-young
1 episodes
Kim Do-yeon
1 episodes
Seo Ji-young
1 episodes
Woo Hyun-ju
1 episodes
Kim Won-hae
1 episodes
Ahn Chang-hwan
1 episodes
Jang Hyun-sung
1 episodes
Kim Ye-won
1 episodes
Han Myeong-hwan
1 episodes
Shin Min-soo
1 episodes
Lee Dong-kyu
1 episodes
Jung Dong-geun
1 episodes
Noh Sung-eun
1 episodes
Lee Dong-yong
1 episodes
Um Mun-suk
1 episodes
Song Yo-sep
1 episodes
You Seong-joo
1 episodes
Yoo Jun
1 episodes
Park Jin-soo
1 episodes
Media
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