beta
I saw a spoiler of someone who read the novel and yes the toxin exist it's just taking too long to show any effects, so don't worry the emperor is gonna suffer and also apparently Raonhiljo is not one of those nice guys who're secretly creeps, he stays a green flag till the end so don't worry about him turning into a red flag
Here's what they said :
Garon does get sick over time after being together with "nameless"(i dont want to spoil his name). It starts with like hand cramps and temporary paralyzation... though, we find out later there is a cure for Imae's poison.