Reality Changing Les

One day some people got the power to change reality, you are lucky enough to had a class with a teacher who knows how to do it, Miss Beatrix, unbelievably beautiful, raven haired asian, 5 foot tall, pouty lips and tight perfect body, you heard that they can change a small moment in your past and it can butterfly effect and change your entire life! She walks in and writes her name on the blackboard before turning to look at the class