
The spoilers that I've seen briefly didn't quite encapsulate what has happened. Don't read this if you are just getting started it is much better coming up to it on Ch 57.
So basically, Silence is the real world.
Silence sucked so much, that after both of their deaths, Huimin isekai'd to a world OF HIS OWN IMAGINATION AND MAKING! (tf kind of magician shit is this)
Iheon got pulled in along for the ride. Figured out what was happening because of the limits of Huimin's own imagination.
Concluded that they would likely both die at the end of Huimin's art creations.
So Iheon Cha planted the book Silence, which is essentially Huimin's (or maybe both) of their memories in Huimin's house. In the hopes that they can go back to their world and be together again.
But of course, based on Ch 1. Huimin only remembered his life in the made up world, Silence being a book. And Iheon didn't remember the Huimin's made up world until Huimin's first heat. Crazy how sex brings memories back. (see Liar manhwa)

Dr. Chae is a scientist that has to make many reports. Dated reports.
He may have lost some of his most recent memories, but did he forget the year he was born?
They said the date right before he presented.
Emails have dates on them!
Why is only that specific memory making him faint and not the fact 10 years was missing from his life!
I hope the last guy he attacked survived so he can spoil the fun.
It's not often that I'm rooting for angst.
But I guess it would be justice.
I'm not even saying they wouldn't stay together after that. I just need everything to come to light before big bro is completely commited.