He has hair loss and isn't actually a doctor at a university; his given name is just 'Mok-baksa' (Dr. Mok). It's said he never even set foot in an elementary school. However, despite appearances, he is a genius who developed humanity's first nuclear fusion generator at a young age, along with many other inventions.

Even if he dies, he is continuously cloned; in some videos, he is cloned in massive quantities. He is a very good dancer. It seems the lineage started with an assistant named 'Gwang-chil.' A characteristic trait is that every time he dies and is cloned, the number at the end of his name increases by one. After Gwang-chil came Gwang-pal, then Gwang-gu, and so on, leading to bizarre names like the current Gwang-isip-il (Gwang-21). As a side note, whenever he cries, he picks his nose with his right finger and covers his left eye with only his index and middle fingers extended while sobbing sorrowfully.

A virus (approx. 175nm). Whether due to the era or the name, he wears an officer's peaked cap and has a mustache and beard. He is always debating his grievances regarding the 3-second rule and remains angry even when Smallpox or Nipah Virus talks to him. Although he is prone to rage, as soon as Nipah Virus settles a matter, he immediately says he believed in him all along.

A virus (approx. 30nm). Literally just a head. He is characterized by his thick provincial dialect and suffers from motion sickness. After being rolled around on the desk, he eventually tells Nipah Virus that he believed in him.

A virus (approx. 175nm). Whether due to the era or the name, he wears an officer's peaked cap and has a mustache and beard. He is always debating his grievances regarding the 3-second rule and remains angry even when Smallpox or Spanish Flu talks to him. Although he is prone to rage, he manages to succeed where others failed. Since curry is Indian food, he remains unaffected by the 3-second rule, successfully hitches a ride on the curry the assistant dropped, and enters the mouth. He finally succeeds in killing the assistant by slicing through the neutrophils inside the mouth.

Part of the immune system (approx. 175nm). The neutrophils inside Assistant Gwang's body are executed by the Nipah virus.