Kim Na-young

Les présentateurs de l'émission sont au nombre de 7, ils affrontent seul ou ensemble les invités afin de gagner la « course finale » et de gagner des « Running Ball ». Ces dernières sont utiles pour éviter tout genre de punitions qui varient selon les épisodes. Les présentateurs sont la plupart du temps mélangés avec les invités pour rendre les défis plus équitables étant donné que les présentateurs connaissent déjà à l'avance certains jeux contrairement aux invités.

Salty Tour is a travel variety program that emphasises on 2 things: Good quality for the price and Small Luxury. For every city/country, 3 of the cast members are assigned as 1-day tour guides and are given the same budget per person. The cast members will attempt to have the best vacation experience with a fixed price limit. The Small Luxury can only be won by the winning tour guide through the judging of the remaining cast members and invited guests for each day tour, in terms of food, places of interest and accommodation.

Produce 101 (프로듀스 101) is a reality music group survival show on Mnet. It is a large-scale project in which the public "produces" a unit group by choosing members from a pool of 101 trainees from 46 entertainment companies as well as the group's concept, debut song, and group name.

Competitors are given elaborate masks to wear in order to conceal their identity, thus removing factors such as popularity, career and age that could lead to prejudiced voting. In the first round, a pair of competitors sing the same song, while in the second and third rounds they each sing a solo song. After the First Generation, the winner of the Third Round goes on to challenge the Mask King, and is either eliminated or replaces the previous Mask King through live voting. The identities of the singers are not revealed unless they have been eliminated.

“Gugudan Project: Extreme School Trip” will be about the first ever trip that the nine members take together. As for the concept, the gugudan girls are headed to Jeju Island to showcase their individual personalities as they face various excursions.