NCT 127's Johnny, Taeyong and Haechan appeared together in episode 22 of Yoon Na-ra's YouTube talk series on August 28. At the table prepared by the chef, the three discussed preferences and earlier years of their career.

An advance announcement scheduled the upload for 5:30 p.m. that day. News1 and OSEN subsequently confirmed the guests and their conversation in reviews. The description of them as the show's first boy-group guests was part of the episode's introduction.

Asked about food, Johnny chose Haechan as the member most interested in eating among the guests. Haechan said he likes Korean food and takes every meal seriously even if he does not eat large amounts. These were preferences the guests described themselves.

They also discussed their differing drink preferences: wine for Haechan, beer for Johnny and whisky for Taeyong. Johnny said he wanted to try Yoon's handmade traditional drink. The exchange introduced different preferences within the setting prepared by the host.

Yoon asked what had changed at music shows as they marked ten years since debut. Haechan said he debuted at 17 and was often the most senior performer when meeting others born in 2000. His stated age at debut and his birth year are separate details in that recollection.

Taeyong remembered waiting rooms. He said earlier arrivals once moved partitions to secure space, while their group arrived later and occupied the middle. He recalled taking short naps together in cramped quarters. As more senior performers now, he said, they receive somewhat larger rooms.

Taeyong also recalled people passing through his trainee years and assuming the eldest-member role while Johnny was in the United States. He said he once asked younger members to meet his standards, but they resolved misunderstandings as they grew. Johnny expressed pride in the members' determination to keep developing.

The shift from food preferences to waiting rooms and trainee days allows viewers to compare how the three remember their shared years.