Why are you doing this, my Duke!? Webtoon
This story is good but maybe cannot tie with other novels where heroines are strong and have an intelligent minds. If you like story such as Ao Haru Ride, then this story is for you. The FL ain't that strong, she doesn't have a magical power nor good at combat or politics. Tbh, she's a normal and typical lady that you can even consider as a side character if you read stories about villainess turned heroines. What so good about this story is the interaction between the ML and the FL, it's a combination of comedy and romance with a slight action or politics. The FL is not a Mary Sue, she have her strength and weaknesses. Her weaknesses are typically the things we hate or want to get rid of so much however she's a loyal and honest person with a kind heart especially if it's about her love ones. The ML has the same characters as the ML we love so much, a strong, independent, cold character with a tragic past. The FL loves the ML so much but it was the latter for the male lead, however, the more they interact, the more the two leading characters grow their feelings, from being friends into real lovers. A typical love story that u'll get fluttery heart but at the same time annoyed. For me, this story is a fresh breath of air from the stories I have read through. Just give it a try, the characters will definitely make you smile and wished to have people like them irl.
A Trace of the Wonder