At Seoul High School, where popularity is measured by how many friends and followers you have on social media, Shiori is a shining star. With her charming smile and always up-to-date style, she is the idol of many students. Every step she took in the school hallway was always followed by looks full of admiration. However, behind that perfection, Shiori felt that something was missing. Loneliness always lurks in the corner of her heart.

Meanwhile, on the other side of the school, there is Seojun, a handsome young man with undeniable charisma. Even though he is popular, his presence creates distance. His cold and mysterious attitude makes many people hesitate to approach him. Seojun is a figure who prefers to be in the shadows, away from the crowd.