(Multi+genius+teacher+apprentice+... Sister?)
Mo Fan, a senior programmer in his previous life, died suddenly due to overtime work. He accidentally traveled to a magical world where magic and fighting spirit intertwined. Unfortunately, the owner of this body turned out to be an orphan and a waste. Isn't this an inappropriate template for the protagonist?
Mo Fan also unexpectedly discovered that the world was in a period of change, and monsters that combined the strengths of magicians and warriors appeared, and he was a demon refining apprentice.
Since then, he has started a legendary life of traveling through different worlds and becoming an AI monster!