I think your right about the drugging and the escape from the person who drugged them and it being the opposite person who knocks up Mc. but I'm not sure if you have the cast right in who is the murderer. It could be the prince. Also a note to support my claim the murders tend to happen after Mc does something that upsets the prince.
That’s true the prince is also sus...
I agree that it’s pretty hard to tell between who will be the murderer,
The only reason I think the prince is in the clear is because he’s a main character and that isn’t evidence at all, especially when the prince can take a yandere route.
But we do know the prince is also obsessed with the mc, and since he constantly calls him his “white rabbit” it does make him seem suspicious.
But what’s the princes motive? We all assume that the mc slept with the prince, so he could’ve ignored the letters to get the mcs attention, who the prince thought was ignoring him because the slept together, rather then not putting effort into case in fear that he’ll get caught.
And if it was the crown prince the royal family would be doing a lot more to cover it up.
I guess that doesn’t rule out the prince setting a trap for the mc so he can truly belong to him
So it’s really anyone’s game
Okay that drug “white kill” is the last piece to my puzzle, so now I’ll give you guys my theory!
The crown prince is the father (obviously), and the brown haired duke is probably the murderer.
What I suspect happened the night our mc got pregnant is that the duke, gave our mc a small bit of “white kill” so the mc would not be in his right mind when the duke confessed. Leading to the mc accepting the confession and sleeping with the duke. But this probably fails because the mc somehow gets away, ooor crown prince steps in for some reason or another.
The crown prince either saving him or bumping into him run away, leads to the two of them to have some sexy time getting our mc pregnant, and it also explains our mcs lack of memories for that entire night.
The murderer; in the beginning we are told that this murderer is believed to be a noble and that’s the very reason why our mc needs help from the prince.
However it was found out that all the reports/letters he previously sent the prince about the case miraculously “disappeared” so I think the murderer is someone higher up on the nobility scale, because they can cleanly get rid of letters that were for the prince. Not just anyone can do that! Hence the duke.
Third, the black haired victims, a lot of the victims look kinda similar to the mc and I don’t think this is an coincidence. And the use of the “white killer” drug that’s both and aphrodisiac and a memory wiper, made me relate it to the night our mc got pregnant, which he can’t remember for the life of him.
And the reason for the killings. The dukes confession failed, and the drugs he used also failed, getting the love of his life to sleep with another man. Duke mad. Why can’t it be him? Why didn’t mc choose him? It’s all his fault.
So the duke takes his hatred out on people that look like the mc, until these fakes don’t satisfy him anymore and he’ll turn his attention on our mc.
Leading to a situation of “I love you so much I want you to die”
Or
“Be with me or die”
Or
“I hate you and your baby, we could’ve been perfect together, die!”