(written in first person) Serena lives in a peaceful area in a town located near a beach in Busan, Korea. Her life is very silent, she lives by herself since her parents passed away 7 years ago. She is 18 years old this year. Nothing changed in her life until a new student transfers into her school, Jun, he was tall and was a mysterious type of guy and he was very good academically. They both get a bad impression of each other. After finishing high school 5 years later, one spring season they both meet each other, once again, but this time in the world or work. They won't easily be able to separate, even if they wanted to...