My Senior Schoolmate Knows Magic

The initial setting is the medieval West, where scholars and magicians are extremely respected. But most subjects are ignorant and very much like those in ancient times. They are simply copies of the history of various sciences. Magic is more prosperous. The early stage is the protagonist's experience of learning magic, and the middle and later stages are the confrontation and cooperation between magicians and wizards. The protagonist is Chen Luo, a university professor who traveled through time. He pushed science a hundred million times. Driven by various factors, the world became nuclear neutralized. In addition, you can even feel the pressure of mathematics when reading this book, but only rarely. Emotions are uncertain and difficult to evaluate, but I feel like the protagonist cannot be said to have had a million points of luck, it can only be said to be lim_{luck→+∞}=kidney failure. In the broad view of time in the book, it is roughly a confrontation between oppression and resistance (which is revealed only in the middle and late stages). Unfortunately, there is only one core in the end. Hierarchical relationship (hope I'm not missing anything): Magic Apprentice→Junior Magician→Intermediate Magician→ Senior magician→Great magician→Magister→ Grand Magister → Holy Magister → Lord (highest)

Short, incoherent thoughts on magic and gods, but the flaws do not hide the flaws.