From Zero to One, the Rules of Survival in a Different World Where the Weak and the Strong Can Eat Each Other

My name is Emil, and I study at Martin Edberg School of Magic. I get D grades in magic classes all year round. I am the only low-level magician in the school who has repeated the grade for three years. I don't know if it was just bad luck, but I accidentally picked up a book of contracts. I knew nothing about magic, but I accidentally opened the contract ceremony. From then on, I disappeared from this world... Intention: Success really depends on opportunities