My In-laws are Obsessed With Me
I like how they don't fall in love. They probably will later. But the platonic part is pretty good.
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.
I'm a Middle-Aged Man Who Got My Adventurer License Revoked