I Became the CEO's Cannon Fodder Bride in a Novel

A CEO novel where the male lead was transmigrated into a coma after a car accident and saved by the heroine? She became a bride who had to marry in her sister’s place to bring good luck to her new husband? And in the end, she was killed by the CEO’s true love? Now that she’s here, she absolutely won’t follow the old path. Making her marry in her sister’s place will come at a price. Possessed by the male lead on their wedding night? That wasn’t in the original plot! Oh, the male lead finally woke up. What the heck? Why have their souls switched bodies? They’re not getting divorced anymore? Actually... her original husband isn’t so bad either...