I Am Proficient in Mysticism!

Steam and mystery go hand in hand, angels and demons coexist. This is the world of occultism. Students from the Occult Society at the University of Renchester recently discovered something strange: The guy who came in at the bottom of the exam seems to have become [Proficient in Occultism] Faced with the ridicule of his classmates, Li En didn't take it seriously. The knowledge that was useless before the time travel turned out to be as brilliant as gold here! The essence of alchemy, the principles of astrology, the nature of magic... He knows everything. He even knows a little bit about the angels in heaven that people have never seen and the terrifying demons in hell. He knew clearly the tricks of occultists and the thoughts of cultists. This is a kingdom that clearly belongs to one's own ideals. Just when he thought he would become a rising star in the occult world with this valuable knowledge. A transcendent creation completely changed his life.