Once Upon A Time, there was a twin named Sin and Mistake.
Everyone always think that they're the same, so Sin asked mistake for a deal. A deal where both of them can find something to prove to anyone that there's a huge difference between them.
Mistake agreed. Sin took over a man's body while mistake took a woman's body. then both of them find someone and got married.
Years passed when Sin Cheated to his wife and Mistake cheated to her husband too.
Sin apologized to his wife and Mistake did the same.
The twins have different reasons why they cheated.
Sin cheated because of lust and he also said that he got tired.
and Mistake cheated because she fell deeply inlove into someone else, she explained that the love she felt is deeper than what she feels for her husband.
But it's the opposite for Sin who wasn't sincere with his apologies but he promised that he will never cheat again but his words can't be trusted since he cheated again for the second and third time.
while mistake apologized with all her heart and confessed all the things that went wrong and tried to fix all the things she ruined.
Mistake's husband forgive her while Sin's Wife got tired so she did'nt rejected Sin's last apology.
and since the deal between they both agreed is only valid for ten years, The twins went back to their original form and the bodies they possessed dissapeared without any trace.
And Lastly, After their deal the twins realized something and proved to anyone that there's really a big difference between them.
Because mistake is mistake. She's something that can be fixed.
while Sin is the cause of intentional pain that is harder to fix and that what makes the two different.
The End
A/N: grammatical errors ahead
