Unseen Heiress

what was the world like outside? are humans treated Equal now? Anna does not remember stepping outside to have some fun, infact her Father is so obsessed with power that he sees fun as a distraction for her, being the successor of Tachibana group Anna has never known joy since birth her twin brother Anthony seems to be her father's favorite but she didn't seem to care, all goes well until her father names his successor and is revealed to be Anthony instead of Anna who came to the world first, was all the training she engrossed since she was born was all for nothing? Anna was gotten rid of for Anthony to take over the business when Father retires but the universe seems to be gainst it as Anna unknowingly enrolls to the same High school Anthony starts attending? Anna, an unseen Heiress and Anthony the recognized heir of the Tachibana Group seem to be entangled by faith with the hope that only one of them can be the true successor but Reyfield High isn't your common regular high school were normal classes takes place if you want to survive you will have to battle with every sing card you got no matter the risks that is if you want to graduate with a recommendation letter for any university to attend