
I freaky love it. It simple but no pointless filter drama in between. I would love to see both sister work hard for their new goal after second prince betray MC.
I love sister stories that actually caring and pissed off at their parent (I know twist one too)
Plus I would love to see animation battles and sister reunion.

I feel like that lose weight is like equal one year but one summer that too much. I don't mind if lose weight on journey but just one chapter bam with backstory. same time, they did show how lose weight that proper way that good but not in one summer.

That rare to see this kind villain that creepy and unique for cubby mc. Just feel little let down how quick solve and move on. Same with former bully, I don't mind friendship later but again one chapter bam solved.
I love mc and ML so sweet, I would enjoy more if just focus on daily life of them not add drama that weird one chapter solve. Well I assume that short story can only offer this,

Base what I understand. Also character map since we almost have two MC: heroine and badass duchess FL. That why chapter 1 and 2 might confuse to reader
Heroine is ML's sister that engagement to bratty crown prince. (I choose heroine because she kind of important character)
crown prince- is actually third prince so bratty due two older princes died.
crown prince's lover- seem like she did scheme something and she was one who step heroine earring
(Key characters and who want help heroine behind scene)
ML is duke married to childhood MC (hardworking his duke land and takeover control after father heartbroken from mother died)
MC married to ML, love ML's family (badass lady can ride horse and use sword). She want beat up crown prince people but she hold back because she need gather facts and evidence to help heroine break engagement without harm her rep.
Reason why heroine able to engagement to prince duo her mother success and got "saint" due her honest work that want help people that illness spread with limit medicine. she found way to have share spread in her land. King granted saint for her successful and arrange marriage her daughter (heroine) to prince
Saint died from overworked to make medicine successful that some nobles don't care and want be selfish. But saint (ml/heroine mom) become well recognized as amazing lady in civilian people's heart
The boy in car back again. I believe his first appears in ch147 unless I forget that they did mention him before ch147. I remember that boy has something link to Na Hwa-jin's past. Boy link to group that MC fail to take down.