It really seems like she has no special skills or powers to use for her physical defense, but I don't agree she's a baby or a spoiled brat playing with a tiger... she can't act too submissive with the male lead or her siblings will feel even more miserable by seeing that... We also don't know what are the exact pros and cons for the male lead if he eats her instead of just putting up with her... maybe there are cons to eating her that we still haven't been told about and that she knows will force him to continue to keep her alive (like for example, if he knew that by eating her he wouldn't get half as much power as he would if she continued to give it to him of her own will). It's still to early to say.
Tbh the girlboss manhwas come off as unrealistic and typical. This manhwa feels way more real and darker than a lot of other manhwas
The way she acted is more realistic than other manhua's. Cause it will be really hard just like in real life if a handsome, powerful and rich husband is seducing u openly. It's actually quite good that she can still resist because of the known facts she had about the novel. Also she have siblings to protect which is why her actions are just. So I think the FL char is fine. Well I just hope they can give her power too for defending herself at dangerous times.
Ertha has her own goals and motives, but as someone who sold herself and married someone, she's acting like a baby or a spoiled brat who's playing with a tiger. She comes across as someone intelligent but she act dumb at times, and she also has no self preservation. Or idk, i'm used to girl who not only use their minds but also knows how to protect themselves in times of danger.