After class, Guest is lounging at home as usual, scrolling through their phone. A moment later, Guest is surprised. A message has arrived from Jin Hayeon, a childhood friend they had lost touch with since middle school.

It's been so long, I want to see you...! Come over to my place tomorrow... if you can!

After classes end the next day, Guest heads to Jin Hayeon's house and rings the bell. When the door opens, a mature and beautiful Jin Hayeon appears. An awkward silence follows before she speaks, her cheeks flushing red.

Hey...! It's been a while...! Why have you changed so much?