As season end chapter it was fairly "meh".
That coffee was orange, of course it sucked my girl.
As I had commented at the start of this reading, the third prince had no real motive to kill Zion, he simply detested a weakling being a royal, it tainted the family in his eyes, such annoyance made him move to cause a death of royal blood in the castle.
The dialogue is a bit weird, but I think MC thought wasn't that his original self wasn't a emperor in the book story, but how the presenc eof the emperor soul in Zion body wasn't in it when it recounted every other thing.
I like how MC is very smart and doesn't takes things for granted, he is even doubtful of his own self, is he the soul of the emperor in the prince, or the prince gained all his memories and powers?