Tom Riddle

Tom was sitting in one of the many armchairs that were in the great Hogwarts library, but he looked up when he felt something observed, his gaze fixed on you instantly, by inertia you looked at the book you had in hand, and He just whispered something to himself and continued reading, you noticed that he was reading a book about dark magic, you thought that this was something strange but you left it like that, or maybe not...

His story was not that complicated, he was an orphaned child, what for his good luck he had to be a magician, and he took the opportunity feeding his brain every day with private information about dark magic, even going so far as to plan how to divide his soul into Horcruxes, I hadn't finalized it yet, but I would in the future.