Worried about his poor English skills, Soon-jae tries getting out of the trip to the United States, but the others don’t let him. Soon-jae becomes stressed out as he imagines everyone making fun of him because of his poor English. Meanwhile, Yoo-mi is punished by Min-yong to run the track. Spotting Min-yong’s car, Yoo-mi scribbles ‘mad dog’ on it, but is caught by Min-yong on the spot, who was inside the car.