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.
A bullied girl becomes friends with a new kid during a break, but when classes start up again, their new friendship is nearly ruined when the bullying continues.
After treating Jan Di in a cruel manner, Mr. Jung prepares everything so that Jun-Pyo can visit her in Seoul. Will he be able to go without Madam Kang finding out?
Yi-jung is waiting outside for Eun-jae, excited to see her -- until he listens in on her phone conversation; from her words, it sounds like a call to a boyfriend.