I can’t believe the movie even if you tell me the ending

(1)1938
(2)A mystery that couldn’t even be recorded
(3)The Missing Girls
(4)Lotte Entertainment Production Youth Film Secret Garden 201506 provided by Park Bo-young, Um Ji-won, and Park So-dam, each director, Lee Hae-sung
(5)The weak girl, Park Boyoung
(6)I got a serum and became a Super Soldier
(7)Ripping doors, destroying secret research facilities, Japan
(8)a fight against the gunfire
(9)This is the ending