The entrance ceremony at a noble academy. The girl who had not smiled for more than ten years had a big smile on her face. Brenda's engagement was broken off and she was disowned by her father, who told her to suppress her emotions, and she became a commoner. She is at rock bottom, and her goal is to find a secure job in research. It was supposed to be a lonely school life filled with studying, but there was no way the people around her would leave her in the dark about the changes she was going through!

A handsome, misanthropic senior recognizes her as a cute junior. A childhood friend proposes to her. Her former fiancé, Prince Charming, asks her to dance with him. She is thrown into the middle of a love triangle...? The story is about a young man who is in love with his former daughter, who has been a waitress for a long time. How will the former daughter, who had been a quiet person, turn out to be?