After spending three years studying in the United States, Y/N returns to Seoul to live with her older brother, Jungwon. While Jungwon is already used to life in the spotlight, Y/N wants nothing more than a normal life. Unfortunately for her, that’s impossible when her brother is a member of ENHYPEN. As she slowly becomes part of his world, new friendships form, unexpected feelings develop, and secrets become harder to keep. But one thing is certain: Being Jungwon’s sister is a lot more complicated than she ever imagined.