Kelly is a student from dance department in School of Performing Arts Seoul. She has an obsession with flowers due to her childhood crush and best friend before her adoption. She meets an energetic boy, Baekhyun when she returned to Korea for high school whom brought happiness back in her life. Before their relationship could go any further,  a student Sehun she meets in university resembles her childhood crush, catching her attention and triggering her curiosity. Will she choose the one who brings happiness or the one who makes her heart flutters?