For Three Months, I Became King by Making Money Through Live Broadcast Gossip.

The former demon king was robbed of his throne by a stone, and he worked frantically for a counterattack: he was beaten on live broadcasts, secretly photographed and gossiped about, committed suicide to make money, and was beaten half to death! He turned around and developed a ghost island with his wife, a loyal dog manager and a mentally retarded AI. He was scolded by poisonous parrots and cheated by strange creatures. The infrastructure was built from scratch and he couldn't stop laughing!