闇覚醒して主人公にボコされるかませ犬に憑依したが原作と違いすぎて戸惑ってる

The villainous noble, Zenon Restinatra, is a disappointing "underdog" who gets beaten up by the protagonist in the original anime. "I," a mere fan of the original work, have possessed such a Zenon!? This place is completely the world of the anime, and when I tried out magic for starters, it was super fun. I've decided... I'm going to change Zenon's disappointing ending! The "do-over" life of a magic maniac begins!! (Source: Kodansha, translated)