Lee Yeon-Ah is a 15-year-old girl from Seoul. She's a k-pop fan. Scratch that, she's more like an addict! Yeon-Ah is obsessed with a boy group named 'ITOP', especially with their lead vocal; Baek Hyun-Jin. One day at a convenience store where Yeon-Ah worked, a boy dropped his wallet. She picked it and it was her bias, BAEK HYUN-JIN! How will their relationship "bloom?"