The representative and chief administrator of YouTube Korea, an artificial lifeform, and the leader of the secret YouTube team 'ALGORITHM'. He has an object head in the shape of the YouTube app and wears a suit. A typical tsundere, he appears serious and cold on the outside, but he is a kind-hearted soul who deeply cares for his subordinates. Most members of Team Algorithm were taught by him in the past, making him their mentor and foster parent. Their bond is closer to blood family than a simple boss-subordinate relationship. While he grumbled about Yellow Badge's actions, he was the one who supported him more than anyone else. Like his colleague Yellow Badge, he cares for users, but unlike Yellow Badge, who expresses his opinions to Google when they conflict with his beliefs, YouTube Korea follows Google's lead even when he knows there's a problem. Of course, this is because Yellow Badge is an outlier; it was YouTube Korea's obedience that allowed him and his subordinate lifeforms to be maintained. He mostly uses polite speech.

Music category. His eyes are musical notes, and he has the appearance of a commander with a Beethoven hairstyle. He launches carpet bombings of 'YouTube Music Fighters'. Thanks to his unique appearance and polite attitude, he is quite popular among the category members. He has long pink hair.

Gaming category. His head is a gaming monitor, and gamepads are attached to his back like wings. He is a veteran but has a very youthful appearance. His combat style involves summoning various game characters or firing off vicious patterns at random, making him one of the strongest among the YouTube algorithms. Due to the nature of his abilities, he is the natural enemy of 'elementary schoolers'.

Film & Animation category. His head is a movie camera. He can mimic all techniques from movies and animations. He is one of the strongest in the YouTube algorithm, capable of copying the skills of famous or overpowered characters. The lens part is not an eye, but a mouth.

Pets & Animals category. As the name suggests, it has the heads of three dogs: a Beagle, a Cocker Spaniel, and a Miniature Schnauzer. Being dogs, they cannot speak human language and only make barking sounds. When they get serious in battle, they become a muscular giant no less than Trainer, with the fierce facial expressions of wild beasts.

Travel & Events category. A newcomer who recently joined the algorithm and is the weakest among the YouTube categories. He has a design that gives off a cute, child-like vibe and holds the position of the youngest member. Perhaps because he is the weakest and a rookie, he is often seen being ignored. He uses polite speech. Despite being a rookie, he is very mischievous, sometimes teasing Trainer or other categories.

Sports category. A massive, muscular giant with dark skin and red eyes. He strengthens his muscles to be even larger and stronger through muscle training videos and fights by mimicking various sports. He has a taciturn personality and is a fitness addict who performs muscle training whenever he has a spare moment.

People & Blogs category. He has the appearance of a secret agent and serves as the vice-captain of the categories. Like Movician and Gamer, he is one of the top powerhouses in the YouTube categories. He is very knowledgeable about YouTube and shows great situational judgment. He uses a mix of polite and casual speech.

Comedy category. Wears a pierrot clown costume. He hangs YouTube users on balloons and forcibly sends them into YouTube videos.

Entertainment category. He has the appearance of a male dancer with a rose in his mouth and has a combat style that involves dancing. He is close friends with the world star Youth. He uses polite speech.