So it starts out introducing the MC who has already transmigrated and integrated herself in this world for what, 4, 5 years (and has become really OP in that time period) who returns to her 'home' (which, personally, I think is stupid, because obviously she can live pretty well off on her own--she literally doesn't have to care about a bunch of people who don't want her there) only to find her fiance (I remember it was some prince) decided to break off the engagement and then she got engaged to ML...
SO, moving on, MC gets some admirers, ML gets some admirers, and a lot of cliche stuff happens ie. people trying to kill the MC to get the ML, the ex-fiance regretting breaking off the engagement, some business agreement with the prince of another country, said prince liking the MC, ML getting jealous... (okay, I admit I don't remember much of what happens in between)
Later on, MC finds out that she is 'blood related' to the ML and panics because it's incest and she knows it's wrong but she still loves him and all that, and then she is relieved when ML when he says that he's actually adopted by her parents and that they have no blood relation but they decide to keep mum about it because his real identity is real sensitive and should not be revealed.
Fast forward through a lot of details that I don't remember, MC finds out that oh, she's not the only one who's transmigrated. Apparently, the person who singlehandedly caused her death in her previous life is also here (and the young master of some Peng Lai? island or something) is out to find her because he loves her and wants to be with her even after she refused him and stuff.
After all that drama, the MC is pregnant and the gu (a type of poison) in the ML is transferred to the fetus and the MC and ML try to get rid of it through a series of trials in some tribe. Seriously?
The ending is happy...I think.
including physical torture upon her soul, a miscarriage inflicted by the ML himself, countless times of heartbreak etc...
If you consider uncle-niece relationship incestuous... (They're not blood-related)