Affiliation: A Regiment, 1st Battalion, Taekwondo Company Rank: Captain Primary Martial Art: Taekwondo 5th Dan Age: 45 Attire: A worn Taekwondo dobok with a V-neck collar Characteristics: He is blunt but shows a tsundere side. He shows signs of having trained for a very long time.

Affiliation: Same as Wang Hyeonjun Rank: Sergeant First Class Age: 42 Primary Martial Art: Taekwondo 4th Dan Attire: Taekwondo dobok with a V-neck collar Characteristics: He is mountainously large and very heavy, making the ground shake when he walks. He actively steps forward for any task requiring physical strength.

Affiliation: A Regiment, 1st Battalion, Aikido Company Rank: Major Age: 55 Primary Martial Art: Aikido 7th Dan Attire: Aikido dobok including a hakama Characteristics: He possesses gentle and soft leadership. Despite his thin frame, he possesses incredible strength.

Affiliation: Same as Noh Dohyun Rank: First Lieutenant Age: 43 Primary Martial Art: Aikido 3rd Dan Attire: Aikido dobok including a hakama Characteristics: He has a serious and dedicated personality.

Affiliation: A Regiment, 1st Battalion, Judo Company Rank: Major Age: 50 Primary Martial Art: Judo 6th Dan Attire: Blue judogi with a dragon-patterned belt, bandages wrapped around wrists and feet Characteristics: She is very heavy, making the ground shake when she walks. She maintains composure during daily life and training. Since her company lacks members, she often practices with training dummies.

Affiliation: A Regiment, 1st Battalion, Hapkido Company Rank: Major Age: 49 Primary Martial Art: Hapkido 6th Dan Attire: Blue hapkido dobok with a black collar, wearing black guards on wrists and feet Characteristics: He is best friends with Noh Dohyun but also his rival in the martial arts world. He has a habit of constantly observing and analyzing.

Affiliation: A Regiment, 1st Battalion, Kendo Company Rank: Major Age: 50 Primary Martial Art: Kendo 6th Dan Attire: Aikido dobok with Kendo armor (bogu) over it; he never lets go of his bamboo sword (shinai) except for eating and sleeping Characteristics: He is cautious and lives with an unwavering mind. Since he is the only one in his company, he practices alone against a training scarecrow.

Affiliation: A Division Rank: Lieutenant General (3-Star) Position: Division Commander Age: 75 (500 in Dragon years) Primary Martial Art: Aikido 8th Dan Secondary Martial Arts: Taekwondo 4th Dan, Judo 5th Dan, Hapkido 4th Dan, Kendo 5th Dan Attire: Aikido dobok with a hakama, wearing a military cap with the Lieutenant General rank insignia Characteristics: The founder of the Muhon Unit. A member of the Dragon race. His office is an Aikido dojo.