All of them got a vacation after Si-Yun scored great on Mock Exams! Its a Villa with a Swimming Pool. Ji-Hyeon is the 1st to strike Si-Yun & they have sex while, Su-Min is listening them having sex, standing outside the room. She is also getting turned on & starts fingering her pussy!
After rescuing his Ajumma, MC faints and then he wakes to Junghee by his side in the hospital room. He gets a boner from his Ajumma's hugs. She then proceeds to relief him.