Kim Taeyeon is currently studying music and arts in Seoul University. She’s 23 years old, beautiful inside out, talented and has a baby-face. She’s well respected but sadly she is in a one-sided love with her senior who is in her class and bullies her every day. One day, she decides to escape from all of the bullying and came to a decision and committed suicide.

Kim Heechul is a senior studying music and arts in Seoul University. He’s 24 years old and loves to bully Taeyeon; his junior for fun. He thinks that bullying Taeyeon will make her notice him more but it did the exact opposite. The day he found out that Taeyeon had committed suicide; he had never felt so guilty and wished he had never bullied her.