Mc was supposed to be the king (lord khalak) after his father. However mc “pushed” his father out a window and killed him and on that day he lost all his memories and went mad. It’s not confirmed yet in the story but it’s pretty obvious that lister and his sister framed MC to take away his title, and have been giving him harmful medication to stop him from recovering his memory. (The insect is not a real thing it’s just how MC copes bcz he actually believes something is wrong with him) However the current lord khallak is not lister it is MC aunt or uncle I don’t remember. Also MC was working with various people including his lover to create a better kingdom but he doesn't remember any of his plans yet.
i’ll try to answer things i rmr from novel but if i get something wrong can some1 correct it
1) yes. the MC used to be a high ranking noble or ruler
2) yes something happened. betrayal, thats y he forgets his memory too. lister/kister made him drink those pills but those pills alter or make him forget memories. thats YY he forget gjrod and how he became a “slave” afaik he didnt kill some1 he just thinks he killed a noble thats y he became a slave
3) no. not a king. gjrod is a loyal knight to MC
4) he knows buttt he made a agreement to kister sister that she will protect the MC and gjrod believed it but upon seeing gjrod knows kister sister breached that contract and agreement thats y hes mass murdering the higher up (as seen on the previous eps)
Ohh now I finally understand. So the promise that MC's lover and Lysbet did is actually to take care of MC after framing him? Or maybe Im wrong? And did MC recover his memories in the novel and take revenge on both Lyster and Lysbet? Cus theyre deadass wrong to framed MC when he is litterally nicee??
here sunoo lover https://www.novelupdates.com/series/antidote-2/
-jungwon stan

Can someone explain pls? Did MC(Sylhan?? I forgot his name omg) used to be a king/lord before Lister(idk if he is a king)? And if so, did something happened that made MC lose his status as the king/lord? And is MC's lover, Sir Gjord a kinght that used to serve for MC or a king/lord too?? Im so confusedd wtf. I think MC lose all his memories about his lover because he ate that medicine that was given to him?? And not because of the insect?? Idk my brain is not braining rn.. can someone explain?