Perhaps feeling it's time to expose one truth, Mr. Jung leads Jun-hee to the unknown patient's bedside; at the sight of her father, Jun-hee breaks down.
Aoi and Hazuka are classmates, but they are not friends. The two girls meet an elderly woman who wants to give a love letter to her first love. Hazuka and Aoi try to find her first love.
Not too eager to watch Jan Di dancing with one of his best friends, Jun Pyo exits the ballroom and ends up taking out his frustrations by the poolside.
A note indicates that class has been moved to the science lab. The lab is unoccupied, but Jan Di waits, not realizing that the room is filling with fumes.