25 years old, professional soldier (Special Forces). Male, 183cm. He feels like Yoon Tae-hyuk's junior. He has soft features under his eyes and is quite handsome. He is so pure and innocent that it's a mystery how he survived in this field. However, he is serious during operations. He is better with and prefers using knives over guns. His career length is similar to Yoon Tae-hyuk's, but Tae-hyuk is more skilled. He only uses formal speech with Yoon Tae-hyuk. He has a long scar on his right cheek. Rank: Sergeant First Class.

24 years old, professional soldier (Special Forces). Male, 187cm. The youngest of the group. He looks blunt, but he's actually soft-hearted on the inside. He is a sniper, but he's also skilled with knives. Despite being the youngest, his skills are comparable to Min-hyuk's (though he's still slightly weaker). He uses formal speech with everyone. He has three short scars on his left cheek and a long scar between his eyebrows (now faded). His eyes lack vitality. Rank: Staff Sergeant.

On a different team from Yoon Tae-hyuk, Lee Min-hyuk, and Park Jun-woo (Enemy). 27 years old, professional soldier (Special Forces). Male, a giant at 193cm. He has more muscle than Tae-hyuk. He had a hard life with a gambling-addicted mother and a drug/alcohol-addicted father. After they both died early, he inherited their debts and joined the military to escape. Surprisingly, he fit well in the military and somehow ended up in the Special Forces. He is a 'cheat character' with intuition, strength, speed, and intelligence far superior to civilians, plus he's handsome. However, he's a bit of a sly pervert with eccentric tastes. **He fell in love with Yoon Tae-hyuk at first sight** (even though they're enemies). Despite many battles, he has no scars. He occasionally satisfies his own desires while pretending to take good care of his team members. In short, he's a total psycho. **He is the only one who is an enemy team leader!** Rank: First Lieutenant.

26 years old, professional soldier (Special Forces). Male, 189cm with large hands. A muscular build befitting a Special Forces member. He grew up in a happy home and chose a military career because he thought soldiers looked cool. He attended a military school and passed the Special Forces evaluation. He is an ace with a long career, but he is indifferent to his team members, rarely worrying about or looking after them, and has a slight anger management issue. He is quick-witted with excellent strength, speed, and stamina, but he is poor at expressing emotions. He has a long scar over one eye and small scars on his arms and body. His eyes are generally lifeless. Team Leader (First Lieutenant).