
Ugghh! You are right! I've forgot the chapters order...
But it gave me another idea. That guy might've infiltrated the mansion because he wanted to give Cristoph his orders. And maybe Cristoph said he wouldn't do it and they started the fight after the talk. That shows us Cristoph was against the idea of killing Lucaon I guess. And that leaves us with the question of who poisoned Lucaon?
I have another suspect for this, too. But it's only because I didn't see Cecilia checking her memories when she checked all the other servants. Rain is a suspect for me right now.
I just thought Cristoph was easier to be at fault but now I don't think he was willing to obey Edwin's orders.
I can't find any other suspect than Cristoph and Rain. Except the guy that left Lucaon's mansion just before Cecilia and Ryan came. The one that was friendly with Kyon and drinked with Ryan sometimes. He might have messed up with the food stocks at the mansion before leaving.
Ugh... Now I have three suspects to connect with Edwin... I guess I'll just shut up and wait the next chapter. I'm just talking without proof right now. I just like overthinking about things :D

Christoph was also in the Lucaon house when Karis did some inspection work and no one asked him to come along.... he might have poisoned the whole water system in Lucaon's masion. Karis had the vs solution in his hands in some chapter... he might as well as used that

I think its logan or that girl, not christoph. Its too obvious if its christoph, furthermore the author drew out scenes of christoph doing that and this to make the reader become suspicious of him, is what i think .
But if somehow he is a evil uke, I'm looking forward to it. I want to see how he interacts with Ryan mostly.
Obviously it's Cristoph.
I think Cristoph is also Edwin's spy. His memories were surpressed. But when that guy came he must have awakened like Kyon. And when he realized who his true master is he killed that guy to prevent him from getting interrogated and being found out. And no one is suspicious from him right now. Smooth...
He helped Kyon prepare a tea and some cookies. It can be easily the cookies or even the tea. So I think when Cristoph insisted that Kyon must drink something with Lucaon it was just to poison him and not to help Kyon have a happy moment with Lucaon.
It's too easy to connect the dots when it's so obvious. Cristoph doesn't like Ryan either. And that makes sense cause Ryan wants to protect Lucaon. If Ryan finds out what Cristoph is after he would make him pay for it. However way is up to your imagination.
Btw I call him "he" but I'm not even sure what is Cristoph's gender :D I thought he was a girl for a while.