On March 20, 2026, STAYC's 'Mwohaseyeong' was uploaded to YouTube. In this episode, the members introduce a variety of must-have items they recommend while prepping for a trip to Japan. In the video, Isa and Seeun personally curate essential pre-trip items and a shopping list for Japan, offering fans practical, need-to-know information. They also candidly share their experiences in Japan and real travel tips, strengthening communication with fans. The video is especially gaining big traction among fans, with comments like "After watching this, I desperately want to go to Japan... actually, I'm just happy seeing Seeun and Isa's faces," and "These brutally honest reviews are so good lol" proving its popularity. Brimming with STAYC's charm and upbeat vibe, this episode is a total treat for fans.