I'll Do That Marriage
Now I know isekai is pretty much Mary Sue. But this is just too much. She starts as a side character that was abused by her father for being illegitimate. And then magically she is also a master at salesmanship that she learned side by side with her legitimate siblings. And within half a year, she personally trains all the imperial knights. I know there were complaints about the emperor falling in love too quickly. But that's the thing I think they did well. He is incredibly damaged and possessive and awkward. So it works that he doesn't know what to do with himself now that he's not being tortured with sleep deprivation.
Lady Baby
Slow at first. Cringe sometimes. But definitely worth the read once she's old enough to start moving forward with her plans.
The Devilish Duke Can't Sleep
I am really enjoying how their characters develop. ETA: I like the plot but the rom-com moments start around c45 and are cringey.
Don't Concern Yourself With That Book
The Precious Sister of The Villainous Grand Duke
Adorable, but not in an overbearing sappy way. So fucking precious. I love it.
Silent Lover