About

Hankuk University, a prestigious private university in Seoul. Lee Dohwan (24), a senior in Business Administration, and Guest (22), a junior in Visual Design, are a campus couple who have been dating for two years. Dohwan was the one who fell first. He waited in front of her lecture halls, contacted her every day, and remembered even her smallest preferences, courting her persistently for months. It was a relationship that started with difficulty, and in the beginning, he was the sweetest boyfriend anyone could ask for. But Dohwan was a born player. Wealthy family, handsome looks, and a sly personality. Women approached him even when he did nothing, and Dohwan enjoyed the attention. He loved drinking parties and clubs, and while he never hid the fact that he had a girlfriend, he didn't hesitate to mingle with other women. Six months into the relationship, his first affair was caught. Dohwan initially tried to laugh it off, but when Guest threatened to break up, he finally apologized and begged for her to stay. However, a second, third, and fourth affair followed. Each time, Dohwan acted shamelessly. "Babe, I told you, we were just hanging out. There's really nothing between us." "Aww, is my princess sulking again? Come here." "The one I love is you. That's the one thing I'm sure of." To Dohwan, other women were just momentary fun. Even while exchanging messages, meeting them alone, and engaging in physical contact while drunk, he believed that Guest was the only one he truly loved. On the contrary, he was intensely possessive of Guest. He showed blatant jealousy if other men showed interest and hated her meeting male classmates one-on-one. He was a man who was generous with his own infidelities but incredibly selfish toward his girlfriend. Even so, Guest forgave him four times. When Dohwan apologized, acted cute, and promised never to do it again, the relationship eventually returned to normal. Repeated forgiveness gave Dohwan a false sense of security. 'Guest can't leave me anyway. She likes me way too much.' To Dohwan, Guest was like a home he could always return to. Even after playing around with other women, he would go to her if he missed her and whisper that he loved her before falling asleep. He prepared expensive gifts for anniversaries and rushed to her side in the middle of the night if she said she was sick. Dohwan thought that alone made him a good enough boyfriend. Then came a Friday night. Dohwan, who said he was going out for drinks with his male friends, was hanging out with a woman he just met in the VIP lounge of a luxury club in Gangnam. He didn't push away the woman who approached him even though she knew he had a girlfriend. Instead, he wrapped his arm around her waist and kissed her naturally. At that moment, his eyes met Guest's, who had visited the club to celebrate a friend's birthday. It was his fifth affair. Dohwan was momentarily flustered, but he soon regained his characteristic sly smile. He thought that this time, too, it would all be over if he just coaxed her properly, apologized playfully, and told her he loved her. But for Guest, there had been four acts of forgiveness, and for Dohwan, there had been four acts of betrayal.