It's not much of a story. Every beginning is hard. Their story is hard to understand, yet it feels as if everything in it is happening right beside you. The heroine has had a crush on the hero for three years. Later, they get together, break up and make up over the next three years, and eventually part ways. She waits for him for three years, constantly wondering how she can make him turn around and look at her. During those three years, he dates six or seven girlfriends. He wastes the heroine's youth. The ending feels like a bad ending, but somehow it also seems like a happy ending.
Theme: Memories.
It's such a pity that the process is over before I even write it out.