Eighteen Years After Rebirth: I Married My Daughter's Best Friend at the Beginning

Who is he? He is a super heavenly master standing at the pinnacle! He is the one who sets the order! The power is overwhelming, and all living beings are prostrate! But he traveled through time and became the live-in son-in-law of his daughter's best friend. Her daughter was bullied, but he came back strong and conquered all living beings!