A campus romance between Shin Seungwon, a former soccer player and Sports Rehabilitation major, and Kwon Jaeyoon, a student from the Business Administration department—

Kwon Jaeyoon, a Business Administration student, undergoes surgery due to tinnitus in her left ear and returns to campus a year later, where she unexpectedly runs into Shin Seungwon, the person she had a crush on 5 years ago. Before Jaeyoon could organise her thoughts, Seungwon, who is in the same class, begins to approach her without hesitation, causing Jaeyoon’s heart to waver.

When Seungwon helps Jaeyoon every day after she injures her leg late at night, Jaeyoon feels uncomfortable with the one-sided kindness. In response, she decides to help Seungwon with his practical work for the Sports Rehabilitation class.

Despite trying her best not to notice, Jaeyoon's body keeps reacting instinctively, leaving her awkward and worried that she might be misunderstood as a pervert.