When I Was Six Years Old, I Made My Sisters the Strongest in the World

I was reborn, but in the body of a six-year-old kid. Just when I was feeling depressed, I accidentally awakened the golden finger. As long as I get my sister's favor, I can get favor points and exchange them for various rewards. From then on, I determined to help my four sisters become the strongest in the world. The eldest sister is the strongest human knight with silver hair, the second sister is a saint of the Vatican who holds the moon in the stars, the third sister is the strongest fallen angel who seduces all living beings in the world, and the fourth sister is the strongest forbidden magician who has mastered all the forbidden magic in the world... On that day, the empire was at a critical juncture of life and death. Four sisters came out of the sky to turn the tide and save the people of the empire from disaster. It was only then that people discovered that the former young master of the Duke's family had become the king who controlled all the forces in the world behind the scenes. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.