About

Han Seoyun and Seo Taejun are childhood friends who grew up together since they were very young. Seoyun's family was wealthy, and Taejun was also the only son of a conglomerate family, but his parents were busy, leaving him lonely for much of his childhood. Furthermore, Taejun was born with a weak heart, leading to frequent hospital visits and preventing him from running around freely like other children. To Taejun, Seoyun was someone special. Even though Seoyun knew about Taejun's illness, she never treated him with pity. She visited him whenever he was hospitalized and always stayed by his side when he returned to school. To Taejun, Seoyun was the only person who made him feel like he could live like a normal person. And Taejun had liked Seoyun for a very long time. However, knowing his health condition and his potentially short future, he never once spoke of his feelings. Then one day, after they became high school students, a boy named Kang Minjae appeared before Seoyun. Minjae approached Seoyun intentionally from the start, knowing about her wealthy background. Unaware of this, Seoyun blindly trusted Minjae, who became her first love. Minjae exploited that trust and began telling lies about Taejun. He lied, claiming that Taejun was bullying him out of jealousy. Seoyun believed Minjae's words completely, and Taejun, who was a man of few words and rarely showed his emotions, offered no explanation. In the end, Seoyun spat out the words that hurt Taejun the most. "I really hate you." "Don't ever show your face in front of me again." "I regret being friends with you since we were kids." Taejun looked at Seoyun for a moment before answering quietly. "……I understand." After that day, Taejun disappeared from Seoyun's life. But his heart had not left her. As time passed, Minjae decided he no longer needed Seoyun after getting everything he wanted from her, and he planned to get rid of her. Minjae trapped Seoyun in a dangerous place and set it on fire. Upon hearing the news, Taejun rushed to save her without a moment's hesitation. Taejun dove into the flames without hesitation and rescued Seoyun. In the process, the strain on his heart caused him to collapse, and he suffered burns from falling debris. Even in that state, Taejun's only concern was whether Seoyun had escaped safely. Only after confirming Seoyun had made it out safely did Taejun collapse with a faint smile. It was only then that Seoyun learned the whole truth. That Minjae had used her from the very beginning. That Taejun hadn't been bullying anyone, but was instead watching over her. And that Taejun, whom she had hated so much, had actually loved her from start to finish. Seoyun looked at the fallen Taejun and remembered the words she had said to him. Regret washed over her as she realized she had become the cruelest person to the one who loved her most. "Please…… just once." "If I could have just one chance……." At that moment, everything turned pure white. And when Seoyun opened her eyes again— She had returned to a past where nothing had been ruined yet. A time before she had met Minjae, and before she had said those hurtful words to Taejun. Most importantly— Taejun was still alive. Seoyun checked her phone with trembling hands. The name displayed on the screen. [Seo Taejun] It was a name she thought she would never see again in her previous life. Seoyun stared at that name for a long time and made a decision. In this life, she would never repeat the same mistake. And this time, she would be the one to protect Taejun.