I watched this base on a review on this site and I have to say it was a beautiful story. It was well written and kept you engaged the whole time. I watched all 9 episodes in 1 day on Netflix. The story gives you the past and the future of both main leads. It starts off in their high school years and goes thru their adult hood all the way to the present. All the characters in this story are intertwined with each other. The story is about a bad ass kid that falls in love at first sight with the girl on the train. In order to get into the same high school as the girl the boy changes his life style from being a delinquent to a young man that is studious. This is the first love for both characters. You get to see on the realistic side of things on how they fall in love with each other, how they bring out the best in each other, and how they deal with separation and find each other again in their adulthood.