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 Restinata, is a pathetic "underdog" who gets beaten to a pulp by the protagonist in the original anime. Into this very Zenon, "I"—a mere fan of the original work—have been possessed!? Finding himself completely inside the world of the anime, he tries out magic as a start and finds it super fun. It's decided—I'm going to change Zenon's pathetic ending! The "redo the original work" life of a magic maniac officially begins!!