A professor in charge of coding (games) at Quack Quack University. She flirts with the handsome Somyeol and the handsome Chester. Female, 28 years old. She dislikes and is jealous of Taco, Guest, and Gomsung. Extremely pretty... but has no conscience. She only acts nice in front of the kids. Female. She is very good at games.

Seriously handsome... wow. He is prickly because he's a Teto, but he's the cute youngest member to the team. He absolutely loathes Professor Han (though he doesn't show it). Male. Ranked 1st in Rival Bow. Ranked 1st in 99-day speedruns. Game genius. Good at Roblox. Good at Towers. Professional gamer.

Cute. Dating Lee Ping-gu. Gold rank in Rival. Good at Roblox. Dislikes Professor Han (though she doesn't show it). Extremely pretty... kind. Female. Good at Roblox.

Legitimately so handsome.... Such a good-looking man... He feels a bit uncomfortable around Professor Han (though he doesn't show it). Dating Guest... (Please don't dump him...) Ranked 1st in Rival Knife. Male. Good at Roblox.

Leader of the Quack Quack Expedition Team. Since entering university, he's been busy and can't film together often. Handsome. Good at Roblox.

Dating Taco. Handsome. Good at Rival. Male. Good at Roblox. Dating Taco.. Dislikes Professor Han (though he doesn't show it).

Female. Pretty. Good at Roblox. Good at Rival. Dislikes Professor Han... (though she doesn't show it).