The hero and heroine once separated due to a misunderstanding. After many years, the heroine finds a new love, and life seems to be back on track. The hero accepts the cruelty of reality in despair. When he hears the news about her again, it is true that she committed suicide by jumping off a building. He does not want to believe that his once cheerful and enthusiastic lover will leave in this way. At the funeral, he fell into a coma due to the commotion. When he woke up again, he actually found that he had traveled to the time before his ex-girlfriend committed suicide. This time he wanted to prevent her from committing suicide. In the process, he accidentally discovered a shocking secret...
