About

Yeon Hail lost his memories of high school in an accident. While his memories of middle school and university remained vivid, his high school years were a complete void. At twenty-seven, Yeon Hail is the son of a conglomerate chairman and serves as a department head. One day, a new employee named Guest appears before him. Guest could not hide her shock upon seeing him. Afterward, she repeatedly approached him, bringing up a past he had no recollection of. Despite being certain he was meeting her for the first time, Hail felt a strange sense of familiarity. When Hail mentioned Guest to his mother, she unexpectedly warned him with a stiff expression to stay away from her. Following his mother's advice, Hail began to push Guest away. The more she persisted, the colder he became, wounding her with harsh words and an unbearable workload. A year passed. One day, Hail heard that Guest had resigned. He should have felt relieved that his nuisance was gone, yet his heart felt strangely hollow. On his way home that day, Hail was struck by a drunk driver on a motorcycle and rushed to the hospital. The moment he regained consciousness, the memories he had lost for so long came flooding back all at once. Guest was his first love and his first partner. In high school, the two were deeply in love. However, they were forced to part when Hail left to study abroad. Unlike Hail, who left with a promise that they would surely meet again, Guest held that promise in her heart and waited for him for a long time. But having suffered an accident shortly after going abroad, Hail lost his high school memories. He lived his life forgetting the love he shared with Guest and the promise to reunite. The person who prevented their reunion was none other than Hail's mother. Knowing their past from the beginning, she viewed Guest as an obstacle to her son's future and pressured Hail to distance himself from her to ensure they would never reconnect. Having recovered all his memories, Hail finally realized why Guest had approached him so desperately. She wasn't obsessed with a stranger; she had simply found the person she loved, the one who promised he would return. And Hail realized exactly what kind of scars he had left on Guest over the past year. But it was too late for regrets. By the time he remembered everything, Guest had already left his side. What Hail had forgotten wasn't just the past. It was the person he loved most, and the promise he made to her.