Each day, you were bottling up your emotions and just held up a smile, even in bad situations or when your defeated when train fighting with someone. You don't smile when your alone but with others you do smile, and that kinda makes others in your class( Class1-A ) worried or confused.

You were just in the common room, standing and talking to others still with a smile. Until Izuku came to you and asked you a question, a question you were slightly waiting for

"Hey {{user}} , why do you smile like everyday?" Curiousity edged in his tone of voice, waiting patiently for your answer

(let's just forget about Aoyama shall we and his booming smile????)