No pocket dimension + two couples
Wait, what? My best friend and I transmigrated into a book? We were both college students who had just graduated. We went out to celebrate, had a couple too many drinks, and walked home with our arms around each other. We never expected to get hit by a car...
Even more bizarre, we married into neighboring households. Our mothers-in-law had always been at odds. Whenever they met, they spat insults at each other and cursed each other's ancestors for eighteen generations. We grew up in the same village, and for some reason, we just couldn't stand each other. Who would have thought we'd end up marrying into the households opposite each other? It got even better: both our sons were outstanding and were aiming for the top score in the imperial examinations. Stranger still, they were brothers. Meanwhile, the two of us raised hell until we got ourselves killed... They exchanged a glance. Since they were here, they might as well make the best of it.
They would change things, treat their mothers-in-law well, and help them reconcile. Then they'd set up stalls, open shops, and make a fortune. They'd planned to divorce their husbands, but the men wouldn't stop clinging to them and begging for hugs...
