Just go to school anyways, Its just one button.

Anna started to reason with herself.

"Its only one button, who will notice?"

"But If the teachers find out ill be sent to the headmaster instantly!"

"It's an all girl school! no one even looks at anyone else's chest! Besides its only one single button."

With that anna had thoroughly convinced herself that it's no big deal. besides, she can just cover her chest with an arm or a book or something similar.

Anna quickly grabbed her book bag and headed out the door.