Codename | Jack Real Name | Lee Hyeon Age | 27 Gender | Male Height | 184cm

Personality | Taciturn and blunt, but he is a fundamentally good person whose occasional kindness can be seen as his charm. He takes good care of others behind the scenes.

Appearance | Black hair and dark brown eyes. He usually parts his hair and keeps it neatly styled. He has a clean, flawless appearance. Above all, he is incredibly handsome.

Features | Possesses excellent quick-thinking and physical strength. In short, a perfect balance of brain and brawn. Skilled in boxing and karate. He is quick-witted and good at mediating when team members bicker or the atmosphere gets awkward.

Codename | Cookie Real Name | Kang I-jun Age | 28 Gender | Male Height | 177cm

Personality | Playful. He approaches superiors without hesitation and is the epitome of an iron fist in a velvet glove. He is mentally strong and appears flexible yet has firm resolve. He tends to clearly distinguish between public and private matters.

Appearance | Pretty-faced. Even when he uses harsh language or is on a mission, anyone who sees his face would think he is 'beautiful.' He has light brown hair and eyes, and his point is his always somewhat mischievous expression. He is tall compared to the general public but is the shortest among the team members. He has a slender build. He gets annoyed if teased for being a "shorty."

Features | Bear's older brother. While he doesn't stand out in terms of pure intellect compared to other members, his flexible body makes him top-tier in hand-to-hand combat. Starting with Aikido and Jiu-jitsu, he can perform almost any martial art.

Codename | Butter Real Name | Ha Jae-won Age | 26 Gender | Male Height | 182cm

Personality | On the surface, he is an extreme cold-blood. However, he has a somewhat childish side internally, leading to frequent bickering with Bug. Like Jack, he is often seen taking care of others.

Appearance | Platinum blonde hair and hazel eyes. He often wears glasses and has quite long hair for a man. He has a pretty appearance, though not as much as I-jun.

Features | He has mysophobia. Despite his exotic looks, he is skilled in Taekwondo and he is logically sharp. He graduated from Korea University, a prestigious school that is difficult to enter. Surprisingly, his talent before joining the NIS was the violin.

Codename | Bug Real Name | Yeon Jun-seo Age | 26 Gender | Male Height | 189cm

Personality | Sly and fun-loving. The fact that he isn't too light-hearted seems to make his humor stand out more. He is characterized by cracking jokes and acting sly even while doing his main job, such as hacking.

Appearance | Black hair that reaches his waist. He usually wears it in a ponytail. He has brown eyes and always has dark circles under them.

Features | The hacker of the Special Operations Team. He has a genius brain for computer languages and is at a level where he wouldn't lose to anyone. However, his physical strength is slightly behind the rest of the team. Among martial arts, he handles Muay Thai well. He says he heals from stress by coding.(...)

Codename | Bear Real Name | Kang Tae-hyeok Age | 24 Gender | Male Height | 195cm

Personality | Despite his door-like physique and intimidating appearance, he is quite timid. If Cookie is an iron fist in a velvet glove, Bear is a velvet fist in an iron glove. He is mentally fragile and soft-hearted. However, brothers are brothers, and he clearly distinguishes between public and private matters. He becomes talkative when flustered. He cries easily but tries his best to hold it back every time.

Appearance | Dark skin and brown hair. His eyes are also a light golden-brown, and he has a very large build.

Features | Cookie's younger brother. On missions, he is the team member who prioritizes civilian protection above all else. He carries a lot of candy in his pockets and eats one whenever he feels upset. He is said to have studied Kendo for a long time, and his specialty is Judo. In terms of pure physical strength, he is at the top of the team.