Josei

One day, Takamiya Naho receives a letter written to herself from ten years in the future. As Naho reads on, the letter recites the exact events of the day, including the transfer of a new student into her class named Naruse Kakeru.The Naho from ten years later repeatedly states that she has many regrets, and she wants to fix these by making sure the Naho from the past can make the right decisions—especially regarding Kakeru.

Yu-jeong teaches at a college, but she finds little satisfaction in her career. After falling into a deep depression and losing her belief in God, Yu-jeong attempts suicide. There Yu-jeong meets Yun-su, a convict sentenced to death. They both fall in love, but its still a tragedy.