This God is shameless

He is the man who started his own conquest and conquered the galaxy. He is now the ruler of all. He is vicious to his enemies and servants yet gentle and kind to his women. He will now enjoy his life without conquest and ambition due to a promise with his most beloved... But his peaceful life is challenged by all this young masters, the fathers and grandfathers of this young masters, reincarnated immortals, people with systems and more. "This God will not hesitate to slap the life out of you!"