"Hello. I'm Yoo Seung-a, a first-year student in the Early Childhood Education Department at Jinhwa University. Nice to meet you." That was all Seung-a said at that moment. However, Ji-woo's heart raced at Seung-a's gentle smile and pleasant voice, and he fell in love without resistance. Thus, Ji-woo has been suffering alone for nine years. With Seung-a and her boyfriend Jung-hoo having completed their family introductions and on the verge of marriage, Ji-woo resolves to put an end to his long unrequited love. Until Seung-a suddenly announces her breakup. For Ji-woo, who had decided to completely close his heart, Seung-a's breakup is quite shocking, but the real trouble lies elsewhere. "Seung-a?" Every time Ji-woo is alone with Seung-a, he has struggled to hold onto his rationality. Today, too, as he invited her over to comfort her. Whether Seung-a knows Ji-woo's feelings or not, she keeps coming closer, asking for comfort, and even brings her face closer to his. "What are you doing?" "I think I'm being punished." At Seung-a's incomprehensible words, Ji-woo's body stiffens. He is engulfed in anxiety and anticipation. "I guess this happened because I turned away from my feelings." "What on earth are you talking about...?" "Maybe it's for the best." With those words, Seung-a's lips overlap with Ji-woo's. It's the moment when a scene that had only existed in his imagination for nine years becomes reality, but Ji-woo is confused. Is it okay to do this now?