Stranger's Handbook - Chapter 66: Conclusion

The MMORPG ’EVR’ was released unexpectedly one day, along with its advanced equipment that allowed players to fully immerse themselves in the game, even though prior VR technology wasn’t nearly as realistic. To prevent people from replacing their real lives with the game, the servers were shut down during the day and on weekends. I was the best at the game, but since I had no friends or family, I could only watch and bet on sports while waiting for the servers to reopen—until the day I died and regressed to a week before the game was released. I know everything that will happen in the game. I know the game is not just realistic; it’s real. And for some reason, I don’t need to log out!

Knowing she married a wrong guy, what would she do to deal with the subsequent marriage lives?

In order to pay for her brother’s medical expenses, she had to replace her own sister to marry the rich family's elder son . She always thought she was married to the elder one, but she did not know her husband was nominally the younger son He Yi Ning.

He Yi Ning, the real heir of the rich family, the ruthless business emperor, the ruthless workplace tyrant, and her sister’s dreaming husband. When she found out that the person who married her was He Yi Ning, she stunned and asked, “Shouldn’t i be your sister-in-law?” He smiled charmingly: “Are you unhappy with your husband?”

Dear comrades, masters, priests, masters, fairies, demons, and leaders, welcome to my world and enjoy the supreme pleasure and supreme enjoyment brought by traveling through various worlds (funny laugh).

- Description from novelbuddy

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story.