Same here, is my fav manhwa so i kinda scared to watch aaaaaaa
I’ll skip over several parts, but yes, she marries the male lead and becomes queen. Certain events unfold, and the Western Kingdom—the male lead’s realm—evolves into an empire; consequently, Navier (the female lead) becomes the first empress of the Western Empire. If I’m not mistaken, they have two or three children.
But a lot happens in the novel and manhwa. Like, A LOT. We know that in the k-drama they will skip a lot of scenes that was funny or iconic (only has 10 caps, the manhwa has more than 200)
Same here, is my fav manhwa so i kinda scared to watch aaaaaaa
-All information is based on the manhwa. Initially, no; Rashta views Navier as an older sister figure and seeks to emulate her (given her own impoverished background, and so on) However, she eventually comes to hate Navier especially once the divorce takes place, the protagonist assumes the role of queen, and Sovieshu begins to miss Navier.
Over time, influenced by the Machiavellian schemes at court (such as those orchestrated by Duke Ergi) as well as her own mistakes and self-sabotage, Rashta begins to blame Navier for all of her own failures and the crises unfolding within the empire.
K-Drama 
But a lot happens in the novel and manhwa. Like, A LOT. We know that in the k-drama they will skip a lot of scenes that was funny or iconic (only has 10 caps, the manhwa has more than 200)
Initially, no; Rashta views Navier as an older sister figure and seeks to emulate her (given her own impoverished background, and so on) However, she eventually comes to hate Navier especially once the divorce takes place, the protagonist assumes the role of queen, and Sovieshu begins to miss Navier.
Over time, influenced by the Machiavellian schemes at court (such as those orchestrated by Duke Ergi) as well as her own mistakes and self-sabotage, Rashta begins to blame Navier for all of her own failures and the crises unfolding within the empire.