After the System Sent Me Home, the Yan Father and Son Went Mad

Looking for a Story Where the Male Lead Fakes His Death, Returns to the Real World, and the Female Lead Finds Out He's Alive

I'm looking for books like *After Faking His Death, the Sickly Empress Chased Him Into the Modern World*. I'd love a story where the male lead enters simulations or transmigrates into a book to complete missions, like simulating life as an empress or a demoness. He fakes his death to fool the heroine, but she discovers he's still alive in another world and transmigrates there to find him.