MAKE SURE YOU READ UP TO CHAPTER 26 OF ILLUSORY BEFORE YOU READ THIS! SPOILERS AHEAD!

So then, it seems I finally got around to posting that chapter up. That chapter that revealed the big secret that I've been hinting at for the longest time, the big secret that Hyunjoo realized, regarding Cha Hakyeon (N). In this blog post, I decided to compile all the hints, all the evidence, that pointed towards the deduction that no one ever made. That was probably just a fleeting thought in the back of your minds. That you're all probably shocked over right at this very moment. I love surprises, don't you?

List of Evidence Regarding Cha Hakyeon

1) How he is described whenever Hyunjoo sees him:

On multiple occasions, Hyunjoo compares how Hakyeon looks and acts to a night sky absent of stars. She even said this to him himself, to which he was quite miffed about. In comparison, on multiple occasions Hyunjoo compares Myungsoo's personality, the facade he wears, as a a black curtain/sky with stars sprinkled here and there. Like a galaxy with endless wonders to discover in its stars admist its dark backdrop. The utilization of similar imagery with both Myungsoo and Hakyeon was the first big hint regarding who Hakyeon is. 

Myungsoo Chapters:

>Springfield chapter 110

>Springfield chapter 124

>Illusory chapter 3

>Illusory chapter 18

>Illusory chapter 22

*Note: control+F for "stars" in order to skip to the afformented evidence.

Hakyeon chapters:

>Illusory chapter 19

>Illusory chapter 24

*Note: control+F for "stars" in order to skip to the afformented evidence.

>Illusory chapter 25

*Note: control+F for "bleak" in order to skip to the afformented evidence.

**This piece of evidence is a bit different in that Hakyeon is described as having golden flecks twinkle in his dark eyes. However, these are not described as stars. The explanation behind these "golden flecks" will be explained in due time. 

2) Hakyeon's description of his parents:

This one is short and simple. Both Hakyeon and Myungsoo describe their father as a "business man." While Myungsoo describes his mother as someone who is not his mother, Hakyeon says his mother loved him because he looked so much like her. 

>Springfield chapter 110 (Myungsoo's description)

>Illusory chapter 25 (Hakyeon's description)

*Note: control+F for "mother" and "businessman" in order to skip to the afformented evidence.

3) Troublemaker Hakyeon

This one is even shorter and simpler. Myungsoo wants to get Hyunjoo into trouble. Hakyeon asks if Hyunjoo has ever been in trouble despite not knowing Myungsoo has said something similar to her in the past. The both of them are a pair of troublemakers, are they not?

>Illusory chapter 8 & 10 (Myungsoo)

>Illusory chapter 25 (Hakyeon)

*Note: control+F for "trouble" in order to skip to the afformented evidence.

And thus all the evidence (that I can point out to you. Who knows if I missed something?)
is revealed along with the secret itself. Is your mind blown?