Audience members toured the multilevel, multiroom facility where they observe rehearsals by the bands F8 and Special K, as well as JTM's flagship star MwE.

RBY’s main star, MwE, starts to perform her song "엎드려 Up Du Ryuh (Bow Down)" but becomes spooked upon seeing Ruby in the audience and flees.

F8 performs their song "한국놈 Han Guk Nom (Korean Man)" but intentionally change up the choreography on Brad as revenge for his outburst.

The action flashes back to MwE’s original audition for RBY, as 9-year old Mina Kim, as she performs "Still I Love You 아직도 사랑해", explaining that she wishes to become a singer to support her mother after her father left.

Brad is reluctant, but eventually relates his personal experiences growing up as the child of a Korean mother and being bullied in school for his identity, and how his treatment by the rest of F8 reminds him of that.

In a flashback to three months before the rehearsal, MwE writes a song "벙어리새 Bung Uh Ree Sae (Mute Bird)" with her childhood friend and boyfriend Juny, in response to the recent death of her mother.

A talented musician himself, Juny prefers his simple life as a music teacher to MwE’s busy touring schedules, and they are only able to meet for short periods at a time and in secrecy.

One of the members, Sonoma, reminds the rest of the group how important getting to perform alongside one of their idols, MwE, will be, and that they must put in the effort to fulfill their lifelong dreams.

Ruby apologizes for not being encouraging or a strong replacement for her mother, but reminds her cancelling the whole performance would jeopardize the careers of everyone at RBY, including the members of F8 and RTMIS.

MwE suggests Juny could come with her, but he refuses, reiterating that he can’t live the rigorous, controlled touring life, and they will have to end the relationship if she stays with RBY.

Ruby, softened by the entire ordeal, offers MwE two options on the condition that she performs at least one more time: to stay with the company, or leave and try to live a normal life with Juny.

For the Broadway production, "Ping Pong" was turned into "Perfect 완벽한 걸", "Sae Nam Ja" was rewritten into "한국놈 Han Guk Nom (Korean Man)", and "Kpopsicle" became ""흔들어 Hun Du Ruh (Shake It)".

[3] The musical's book was by Jason Kim, direction by Teddy Bergman, choreography by Jennifer Weber, and immersive design by Woodshed Collective.