The Immortal Emperor Is Reborn, but His Mortal Girlfriend Wants Me to Take Over

Jiang Han, the powerful Immortal Emperor, was reborn, but he possessed the body of a dandy rich boy. The dandy boy's ex-girlfriend claimed to be pregnant and came to get back together. She cried, made trouble, and hanged herself. She wouldn't marry him unless he was the one! I, the majestic Immortal Emperor, want to be a successor and want to be a father?