Chapter 1: 1.Oops!

I've been told about BTS. but I didn't know who they are until they showed up in my phone. One day, I was taking a break and bts just showed up in my phone with IDOL song but they were not really BTS. They were yu byung jae, park sung kwang, and yang se hyung. there were dancing and singing IDOL. I thought they are the one BTS. oops! why they are so famous!! That was my first impression about BTS.