Ga-yung takes Kyung-Ho with her to see something interesting...it's a couple fucking outdoor. They get her all fired up and so she initiates the sex despite Kyung-Ho not being comfortable doing it outside.
Ga-yung's laptop broke down, she wants Kyung-Ho to fix it, but it's not only the laptop that she wants fixed as they fuck in the practice room at night. but they aren't at it for so long as they get interrupted by Seung-ah.