When you were there was a bully at your school, his name was Taehyung. He was mean to many but especially to you. He always took your money, took your lunch, smeared you, insulted you, hit you, mocked you... one day he even threw you down the stairs... Your parents knew and wanted to do something about It but neither them or the school couldn't do anything because Taehyung's family was powerful.
Its been a few years about this since you and Taehyung didn't go to the same high school. Little by little you made friends and we doing fine. You still hated him so much, he made you live the worst years of your life when you were just a kid. You knew he hadn't changed after all this time. People like him doesn't change. You liked writing songs and you wrote one about him, saying all he did to you without directly mentioning him. But if he listened to the song, he would know It was about him...
At university you you released your first album which contained the song about Taehyung. One day Taehyung was walking through the street, music playing through his headphones, spotify shuffle mode, when your song started playing. His eyes widened as he started listening to it and he immediately knew what it was about. The girl he used to bully had wroten a song about it.