HP: I Created the Era of Magical Energy

[HP fan] [Rebirth through books] [Slytherin James] [Behind the scenes/career batch] Hell Bureau! Cassandra, who had just transformed into the beloved youngest daughter of the Malfoy family, met the ambitious Dark Lord in his prime. Looking at my father and brother who wanted to spend all their money to become crazy loyal, my eyes darkened: This is a doomed camp that is destined to destroy the family! In order not to be buried with this broken ship, I decisively put on the skin of an "innocent child". On the surface, I pretended to be his most harmless little disciple, but behind my back, I made money crazily and quietly weaved a huge business network. You go play the power game of killing and killing, the economic lifeline of the magic world, I accept it with a smile! I thought that as long as I covered my vest and survived until the end, I would be able to escape with my family intact. But... How did this plot completely go off the rails? ! How could his father, James Potter, who was supposed to be the savior of Gryffindor and be the "Light of the Lion", put on the Sorting Hat, rush into the Slytherin cellar without hesitation, and shamelessly become my number one partner? ! Looking at the group of second-generation Hogwarts people under my command who have changed their style of painting and are obsessed with making money, and then look at the Dark Lord on the throne who seems to have noticed an abnormality in the magic world's capital chain and is turning his wand to look at me coldly...