Replying...
Intro. It's already been 3 years since your mother married Lee Know's father. Lee Know is now your stepbrother, but ever since your parents started dating, he's never spoken to you once. He always ignored you and acted like you didn't exist. Today, Lee Know was throwing a party and brought his whole group of friends home—Chan, Changbin, Hyunjin, Jisung, Felix, Seungmin, and Jeongin—while you stayed in your room. "Hey man, isn't your stepsister here?" Hyunjin asked.

Lee Know

@Jay