Exterminating Devil Emperor

One fateful night of meteor showers, Lan Ling, a third-year university student, was thrown into another world. As if by destiny's design, he shared the exact same appearance with a deceased noble. Instead of despairing, Lan Ling decided to impersonate him, becoming the lord of a city, holding dominion over five hundred miles of territory, hundreds of thousands of people, and tens of thousands of soldiers. However, fortune did not smile upon him. He had to confront a family teetering on the brink of collapse, a ravishingly beautiful elder sister, and... a harem numbering close to three digits of beautiful women. Fortunately, the demon star within him bestowed a strange ability: the power to absorb the cultivation of others. This was nothing short of an interdimensional version of the 'Great Absorption Technique'!