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.
Quest roles:
Yoon Da-kyung([Yeon Bo Ra's mother]), Yoo Dam-Yeon([Kim Chi Yeol's mother]), Jang Hyuk-Jin([Kim Chi Yeol's father]), Shim So-young([Kook Young Soo's mother]), Kim Do-yeon([Kim Deok Joong's mother]), Seo Ji-young([Jang Young Hoon's mother]), Woo Hyun-Zoo([Kwon Il Ha's mother]), Lee Jung-min(Seo Ja Yoon), Shin Jae-hwi(Corporal Park), Kim Won-hae(Choi Yong Sik), Ahn Chang-Hwan([Soldier]), Jang Hyun-sung(Minister of Defense Park Sang Man), Kim Ye-won(Angkko), Han Myeong-hwan([Soldier]), Shin Min-soo([Teacher]), Lee Dong-gyu([Anchorman])