It is finally the D-Day for the college entrance exams. Afterwards the students make elaborate plans. Seong Jae wants to pick up girls, so he goes to a karaoke bar with Joon Hee. They try to pick up girls, but one girl turns out to be his sister. Hak Chan invites Yoo Jung to his house to watch a videotape he has made for her. She thinks he wants to seduce him into bed, so she honestly tells him she has her period. Yoon Jae wants to meet Shi Won after the exams. So does Tae Woong. Yoon Jae carefully plans to tell Shi Won that he likes her and buys her a dog. Tae Woong wants to take Shi Won out for a drink and also tell her that he likes her. Yoon Jae is shocked to find out his brother's plans. He realizes that the most important thing about D - Day operations is scouting the field, which he did not do thoroughly.