I recommend 'The Reborn Hermit's Counterattack' to you. The protagonist was born in the golden age of supernatural powers and once stood at the peak of the era. However, after his rebirth, he became an ordinary person. He lived a simple life in the city and occasionally pretended to be young and cute. This was the story of an unscrupulous black-bellied uncle pretending to be young. I hope you like this fairy's recommendation. Muah ~😗