Cao Thien is a gentle and soft-spoken girl who has been bullied by friends for years due to her deafness caused by a childhood accident. Despite this, she excels academically and is the pride of her school and prestigious family.

However, there is one strange thing about her - she always wears... a mask that covers her face completely. Everyone in school suspects that she must have a very ugly face, but when she finally reveals her face, it turns out she is a stunningly beautiful girl.

To everyone's surprise, she becomes acquainted with the school's most difficult-to-approach student, Tham Du, who is known as a prodigy but is also very aloof. Tham Du suddenly becomes interested in her and starts to tease her, making her heart flutter.

One day, Tham Du traps her against a wall and lifts her chin, leaning in close to her ear. He jokingly offers her three kisses in exchange for her attention. Cao Thien is left confused and shocked, not knowing how to respond.

As they get to know each other better, they realize they have a lot in common, and a budding romance begins to blossom. People start to see them as an unlikely couple, with Tham Du as the school's elite and Cao Thien as the "soft and cute cotton ball."

Despite their differences, they truly care for each other and their love story becomes the talk of the school.