Read manhwa A Flowery Path for the Devastated Male Lead / A Flowery Path to the Ruined Male Protagon...
She's an idiot in love with the villain of the story, so she's going to save him by making him her hubby. She, by a miracle of fiction, manages to pull it off, allowing her man to walk again, then it's such a fast dash to the end it gives you whiplash. It's stupid, but cute.
