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!
Lee So-hee goes to meet Seok Do-Hoon & they have reconciliation sex
END: Series Finale (An ending that seems like, author was asked that the series will be axed).
