𝘴𝘩𝘪𝘯 𝘮𝘪𝘯𝘴𝘦𝘰, a student in class 3-2 at sungjin high school, was supposed to focus on preparing for the csat examination. however, her life took a drastic turn when strange aliens suddenly appeared in the sky, forcing her and her classmates to fight against this threat. the chaos overwhelmed minseo, especially after it was revealed that she was pregnant. despite feeling shocked and ashamed, minseo found support from 𝘭𝘪𝘦𝘶𝘵𝘦𝘯𝘢𝘯𝘵 𝘭𝘦𝘦 𝘤𝘩𝘶𝘯𝘩𝘰, the leader of class 3-2's platoon, who always protected her and helped minseo endure all the dangers they faced.