Rebirth: I Punished the Scumbag and His Sister-in-law!

The sister-in-law is a frenemy, always calling my fiancé to go out for drinks late at night.

Despite my repeated complaints, she just brushes it off, saying, "We're like brothers; what's wrong with having a meal together?"

On the day we were choosing wedding dresses, she used the excuse of helping him with his tie to sneak into a dressing room with my fiancé.

I was furious and stormed out.

Meanwhile, they went to my wedding bed and had an affair.

When I caught them in the act, she pushed me down the stairs, and I died on the spot.