Korea has been taken over by aliens, and three agents from two different timelines spearhead the war against them. An unknown monster strikes them! One day, a single scream in an urgent phone call was heard.
2022
1955
1978
1946
1984
1988
2016
2006
1990
1986
1974
2000
2001
1995
1972
1961
1969
1975
