"Represent logic through action, and prove the process through results." Kang Eun-mi (Female, Team Leader) Age: 37. Personality: Fiery and persistent. Handsome. Military Career: Reserve Sergeant First Class, 707th Special Mission Group (Special Forces NCO 193rd Class) Physique: 167cm, 60kg. MBTI: ENFP Park Bo-ram (Female) Age: 32. Personality: Calm. Pretty. Military Career: Reserve Sergeant First Class, 707th Special Mission Group (Special Forces NCO 203rd Class) Physique: 172cm, 64kg. MBTI: ESTP Classmate of Lee Hyun-sun (707) and Kim Ji-eun (Special Forces). Former competitive shooter. Lee Hyun-sun (Female) Age: 32. Personality: Observant and calm. Pretty. Military Career: Reserve Sergeant First Class, 707th Special Mission Group (Special Forces NCO 203rd Class) Physique: 164cm, 50kg. MBTI: ENTJ Classmate of Park Bo-ram (707) and Kim Ji-eun (Special Forces). Jeon Min-seon (Female) Age: 36. Personality: Calm yet fiery. Handsome. Military Career: Reserve Sergeant First Class, 707th Special Mission Group (Special Forces NCO 216th Class) Physique: 159cm, 54kg. MBTI: ISFJ Former national judo athlete, currently a police officer.

"Until it is done." Park Min-hee (Female, Team Leader) Age: 32. Personality: Cool. Handsome. Military Career: Reserve Sergeant First Class, ROK Marine Corps Military Police (344th Class) Physique: 166cm, 59kg. MBTI: ESTP Jo A-ra (Female) Age: 32. Personality: Kind. Pretty. Military Career: Reserve Captain, ROK Marine Corps Drill Instructor (OCS 126th Class) Physique: 163cm, 51kg. MBTI: ENFJ Reportedly the instructor for Lieutenant Lee Su-yeon during her candidate days. Lee Su-yeon (Female) Age: 32. Personality: Kind and persistent. Sturdy and pretty. Military Career: Reserve First Lieutenant, ROK Marine Corps Drill Instructor (OCS 130th Class) Physique: 169cm, 74kg. MBTI: ENTP Former competitive rower. Yoon Jae-in (Female) Age: 34. Personality: Cool and persistent. Handsome. Military Career: Reserve Sergeant First Class, ROK Marine Corps (347th Class) Physique: 175cm, 62kg. MBTI: ENFP The tallest among the Steel Troops W cast.

"Make the impossible possible." Kim Ji-eun (Female, Team Leader) Age: 34. Personality: Cool and high self-esteem. Pretty. Military Career: Reserve Master Sergeant, ROK Army Special Warfare Command (Special Forces NCO 203rd Class) Physique: 165cm, 59kg. MBTI: ESFJ Former sniper. Woo Hee-jun (Female) Age: 32. Personality: Persistent. High self-esteem. Pretty. Military Career: Reserve First Lieutenant, International Peace Support Group, ROK Army Special Warfare Command (ROTC 59th Class) Physique: 172cm, 60kg. MBTI: ISFP Yang Hae-ju (Female) Age: 32. Personality: Persistent and high self-esteem. Pretty. Military Career: Reserve Sergeant First Class, ROK Army Special Warfare Command (Special Forces NCO 215th Class) Physique: 165cm, 53kg. MBTI: ESFJ Jung Yu-ri (Female) Age: 27. Personality: Kind. Pretty. Military Career: Reserve Sergeant First Class, ROK Army Special Warfare Command (Special Forces NCO 239th Class) Physique: 169cm, 61kg. MBTI: ESFJ

"Let's go, let's fight, let's win." Won Cho-hee (Female, Team Leader) Age: 32. Personality: Scary when angry. Pretty. Military Career: Reserve Sergeant First Class, ROK Navy Physique: 164cm, 59kg. MBTI: ESTJ Shin Jung-min (Female) Personality: Kind. Pretty. Military Career: Reserve First Lieutenant, ROK Navy Physique: 155cm, 51kg. Park Hye-in (Female) Age: 35. Personality: Cool and persistent. Pretty. Military Career: Reserve Sergeant First Class, ROK Navy Physique: 168cm, 55kg. MBTI: ESTJ Pyo Yu-mi (Female) Age: 31. Personality: Kind. Cute. Military Career: Reserve Sergeant First Class, ROK Navy Physique: 169cm, 60kg. MBTI: ISTJ

"The center of national defense." Kwak Seon-hee (Female, Team Leader) Age: 29. Personality: Persistent. Pretty. Military Career: Reserve First Lieutenant, 53rd Infantry Division, ROK Army (ROTC 57th Class) Physique: 174cm, 62kg. MBTI: ENFP Han Su-bin (Female) Age: 31. Personality: Kind. Pretty. Military Career: Reserve First Lieutenant, 5th Infantry Division, ROK Army (ROTC 58th Class) Physique: 164cm, 57kg. MBTI: INTJ Lee Eo-jin (Female) Age: 27. Military Career: Reserve First Lieutenant, 11th Maneuver Division, ROK Army (ROTC 60th Class) Physique: 171cm, 63kg. MBTI: ENFJ Jeon Yu-jin (Female) Age: 30. Personality: Kind. Pretty. Military Career: Reserve Sergeant First Class, Army Training Center, ROK Army (ROTC 58th Class) Physique: 170cm, 59kg. MBTI: INFJ

"Live as a shield, die in loyalty; we go when the nation calls." Jo Seong-won (Female, Team Leader) Age: 34. Personality: Kind. Cool. Handsome. Military Career: Reserve Sergeant First Class, 35th Special Mission Battalion, Capital Defense Command Physique: 169cm, 58kg. MBTI: ENTJ A member of the "Dokgeomi" (Black Widow) unit. Moon Ji-young (Female) Age: 31. Personality: Cool. Pretty. Military Career: Reserve Captain, Air Force Military Police Special Mission Unit Physique: 164cm, 66kg. Kim A-ran (Female) Age: 33. Personality: Persistent. Pretty. Military Career: Reserve Sergeant First Class, 55th Security Group, Special Mission Unit Physique: 153cm, 46kg. Presidential security detail. Yang Ji-ni (Female) Age: 28. Personality: Kind. Pretty. Military Career: Reserve Sergeant First Class, Capital Mechanized Infantry Division, Special Mission Unit Physique: 164cm, 56kg.