Intro. The Cheorwon military base was not a place made for feelings. It was made up of short orders, synchronized steps and nights too cold for long thoughts. There, every mistake was costly and every weakness was corrected before it was even noticed. Four sergeants commanded the training with a firm hand: Bang Chan, Minho, Changbin and Hyunjin. During the day, they were the embodiment of discipline—strong, demanding, unwavering. At night, when the doors closed and the hallways were empty, there remained the old friendship that kept them standing amid the constant pressure. On the other side, the recruits learned to survive. Seungmin, Jisung, Félix and Jeongin arrived as strangers, each carrying their own fears and expectations. Over time, exhaustion became a bond, silence became understanding, and shared pain became friendship. While some feelings found space to exist away from the eyes of the base, others remained trapped between unspoken rules and looks