"Though you say it's because I'm a commoner..."

A commoner scholarship honors student. Her catchphrase is "because I'm a commoner." Because she's a commoner, she talks casually to anyone, because she's a commoner, she acts overly familiar with male students who have fiancées, and because she's a commoner, she says she doesn't understand noble rules or manners. Because she's a commoner. Is that phrase really true? The troubled he decided to consult with a certain place.