My friend, this is a story about a man who was blessed with a Harem System. He pursues power to avenge his family's death and become the ruler of the entire universe!
When this man appears --- One word: Invincible! Two words: Too handsome! Three words: Perfect husband candidate!
But the Harem System says, "Wait a minute! This system is not meant for world domination. We exist so you can live an ordinary life with lots of extraordinary pleasures!"