
wtf is King Johanness thinking -minus points for you... He sent an invitation to Marie but didn't bother to send her a dress.. In this situation there are 2 dress that was shown Blue (from Kiel -he is wearing dark blue) and Yellow (from Rael)... Why did I say that? becoz when you want to escort a person to a noble ball you usually go there with matching colors... In this situation since Marie want to meet the anonymous sender she chose the Yellow dress (since this will match with the sender as well - Cp is wearing matching colors of his invitation)... So the obvious person that Marie wants to meet and escort her is the anonymous sender... Damn CP why too shy.... Never mind you will have more chances soon...

I support! Plus, the floral pattern on her dress matches part of his outfit. He has the same pattern for a part of his shirt.
raw:
https://rawdevart.com/comic/capable-maid/chapter-30/

Now I understand so Konrad's grandfather is the twin of the Emperor (the 50yr old one) that married the current Queen Dowager. What does this imply? For me the possibility that Konrad is the main Male Lead and can become Emperor in the future. We don't have any specifics yet if the current crown prince (Eli's fiance) is related by blood with the Queen Dowager (Blue haired bitch) - remember she is a princess of neighboring country. But as I see from the opening chapter when Leslie showed the CP her burns he didn't do anything. So I wish he is not one of the male lead candidate (its too early to say)...

There was also a chapter where the crown prince was mad at Eli for not properly hiding the latter's family's dirt, and since she is her fiancee, it might affect him in a way.
I was also shock, I though he just did not know because Eli always lies to him about her sister. It turns out that he just doesn't care.
You desperate people, you'll get the ultimate karma soon..