Which cartoons depicted a Patronus monster behind them?

Based on the information provided, I recommend the following two novels: " Otto, My Dark Diga, Divine Beast Tamer ": The protagonist of this novel, Su Cheng, transmigrated to the Ultraman world of Diga and became a Dark Diga. He also possessed heaven-defying beast taming abilities. The entire Otto World was in chaos. Su Cheng had retreated behind the beasts during the battle. What was most interesting was a " righteous siege " or something like that! " Adventure in the animated world ": The protagonist Qiu Ming transmigrated to the story world of a classic domestic cartoon and discovered that immortals, monsters, snake spirits, and fox women all had another side. And what he learned inside could actually be brought back to the real world. I hope you like my recommendation. Muah!