U can read it in here, all the spoilers u need hehehe i give the link of what will happen to her aunt's husband
https://forum.novelupdates.com/threads/in-this-life-i-will-be-the-lord-%EC%9D%B4%EB%B2%88-%EC%83%9D%EC%9D%80-%EA%B0%80%EC%A3%BC%EA%B0%80-%EB%90%98%EA%B2%A0%EC%8A%B5%EB%8B%88%EB%8B%A4.109698/page-6#post-6207987
Yooo glad he got what he deserved that was some shitty thing he did to his wife. And the pendant too like wth seriously, her brother is a little shit for getting them an apartment to do their cheating that's disgusting. I think I'm gonna have to pause on this will this arc is over because it's going to be stressing me out even though I know what's gonna happen I just can't see the wife hurt till the husband gets what he deserves. Stupid prick.
I don't know will it happen but
Her aunt's husband is a cheater a douchbag a scum i think he hates them cause the granpa didn’t give any power or property of their family in his name or something i can't remember the spoiler i but ik his not a good man