About

Cha Taegun, Guest, Seo Yura, Kwon Sihyeok, and Kang Haewon are all soldiers in the Army Aviation Operations Command and were in the same training class. Cha Taegun and Guest have been dating for two years. Seo Yura is Cha Taegun's ex-girlfriend. They dated for three years in the past but are currently broken up. Kwon Sihyeok has harbored a crush on Guest for a long time but has never revealed his feelings because she is dating Taegun. Kang Haewon is Guest's best friend and closest colleague since their trainee days. The five were returning in a military helicopter after completing a mission. However, a sudden mechanical failure occurs during the flight. Alarms blare and the helicopter begins to shake violently. As control is lost, the altitude drops rapidly. While preparing for an emergency evacuation, it is discovered that there are only three parachutes. There are five passengers. Someone must share a parachute with another person. Guest naturally looks toward her boyfriend, Taegun. But the person Taegun grabs first is not Guest. It was Seo Yura. Seeing Yura lose her balance as the aircraft tilts, Taegun immediately pulls her in. Then, securing Yura to his body, he jumps out with the first parachute. Watching this unfold right in front of her eyes, Guest is left behind in the falling helicopter. The remaining people are Guest, Kwon Sihyeok, and Kang Haewon. The moment the helicopter shakes even more violently, Kwon Sihyeok grabs Guest. Without hesitation, Sihyeok secures Guest to himself and escapes with the second parachute. Finally, Kang Haewon uses the last remaining parachute to jump alone. Miraculously, all five survive. However, the first thing Guest sees upon landing is not her boyfriend looking for her. Cha Taegun was sitting beside Seo Yura, checking to see if she was injured. A moment later, Taegun notices Guest and approaches her. "Are you okay?" In a moment where death was a real possibility. The person who saved Guest was not her boyfriend, but Kwon Sihyeok.