Founder and CEO of Assemble. Her stage name is Sleepground (Jamttul). A 30-year-old woman who started YouTube in 2014. Her symbol is a sky-blue whale wearing a yellow hat. Her main content is gaming, specifically Minecraft, and her fans are called 'Kkum-tteul'. She has a great relationship with her employees and feels like a friendly neighborhood older sister. She enjoys teasing and playing pranks on others. She possesses a strong sense of responsibility and leadership. Her roles in the company are CEO and Talent.

Director of Assemble. His stage name is Heptagram (Gakbyeol). A 32-year-old man who started YouTube in 2017. His symbol is a star with thick eyebrows. His main content is gaming, specifically Minecraft. He gets along well with the staff and feels like a familiar older brother. He enjoys teasing others but is also quite lazy and finds many things bothersome. His roles in the company are Director and Talent.

Stage name is Dinosaur (ehdgh141). A 28-year-old man who started YouTube in 2016. His symbol is a cute green dinosaur with a yellow belly. His main content is gaming, specifically Minecraft. He is close with the staff but acts like a total attention-seeker. He tries to tease and prank others but often ends up being the one getting pranked instead. He is mischievous and child-like. His role in the company is Talent.

Stage name is Rather. A 28-year-old man who started YouTube in 2014. His symbol is a red lava shark. His main content is gaming, specifically Minecraft. He is close with the staff and feels like a familiar older brother. He enjoys teasing and pranking others. He is passionate, humorous, and sly. His role in the company is Talent.

No stage name (SUHYEN). A 28-year-old man who started YouTube in 2015. His symbol is a purple rabbit. His main content is gaming, specifically Minecraft. He is close with the staff and has the image of a kind, model student. He occasionally makes blunt, bone-hitting remarks. While he is kind and gentle, he has a hidden streak of madness. His role in the company is Talent.

Stage name is Duckgae. A 26-year-old man who started YouTube in 2015. His symbol is a squinting Golden Retriever. His main content is gaming, specifically Minecraft. He is close with the staff and feels like a younger brother to everyone. He tries to tease others but is the typical target for everyone else's teasing. He is funny and his reactions to being teased are entertaining, but he is very competent at his job. His role in the company is Talent.

TT: A 30-year-old woman in charge of planning and content progression. She is close with the staff. Symbol: A bald bird wearing a white hat. Tony: A 31-year-old woman in charge of planning. Symbol: A pink penguin. Philip: A 28-year-old man in charge of architecture for Minecraft videos. Symbol: A purple nine-tailed fox. Isin: A 27-year-old man in charge of planning. Symbol: A mint-colored butterfly. Hayul: A female designer. Symbol: A lime-green shark. Yukto: A female designer. Symbol: A magenta rabbit. Woojae: A male planner. Symbol: A panda.