NewJeans made their debut appearance on a terrestrial variety show on the broadcast of KBS2's '2 Days & 1 Night.'

Yoo Seon-ho expressed, "I hope they are younger than me," while DinDin warned, "Don't look at them. Don't show interest!" Na In-woo, curious and unable to contain himself, mentioned that the guest was a female.

However, Moon Se-yoon remained skeptical, joking, 

"The writers are dressed up. It can't be Celeb Five, right?" Kim Jong-min guessed based on the laughter he heard, "They sound like elementary school kids." 

From a distance, the '2 Days & 1 Night' members noticed that the guests were a girl group with long hair.

NewJeans, feeling unsure, wondered, "Are we really supposed to make our entrance like this?" They felt nervous about meeting the '2 Days & 1 Night' members. Haerin and Danielle, who lost a game of rock-paper-scissors, led the way, followed by Hani and Minji.

As NewJeans approached, Na In-woo exclaimed, "Hey, there's a foreign member! It's NewJeans!" To which DinDin skeptically responded, "What do you mean, NewJeans? Why would NewJeans be here?" 

Despite Na In-woo's insistence, saying, "Trust me, I have Mongolian vision," DinDin remained doubtful.

In the episode, the '2 Days & 1 Night' members, transformed into the idol group 'Heungcheongmangcheong,' will compete in battles with NewJeans. 

Four members of NewJeans, excluding the youngest member Hyein who is resting due to a foot injury, participated.

As the games began, a clumsy member from NewJeans made frequent mistakes, prompting Na In-woo, the '2 Days & 1 Night representative clumsy member,' to warmly say, "Nice to meet you." 

Additionally, NewJeans will take on the show's signature luck-based games.