Sex Is ConfidenceMovie

Min-woo, an old friend, visits the home of roommates Da-hee and Mi-yeon, and the three talk late into the night. The next morning Mi-yeon goes to her room to get ready for work, and Min-woo, left alone, finally confesses the worries he has been carrying. His honesty makes Da-hee believe he is in love with her, and she spends a nervous, hopeful time alone with him. But as they keep talking she realizes the person he truly has feelings for is Mi-yeon. Once the misunderstanding is clear, Da-hee cheers on his sincerity, and the three keep their precious friendship warm.