I believe everyone is knda suggesting the kidnapper to be the fl's college friend and at the same time some people saying it is the ml's assistant but at the scene of the crime, he was next to the ml all the time or could he be connected to this? Could this be a business organization plotting against her for the ml to like step down on his job or there is even a third party involve? 

What do you all think? 

I had doubts of if it was FL's senior but it just doesn't feel that way. I don't think he has an obsession with ML or FL. However I am leaning heavily towards the step-sister, I also feel like there is not any connection between the step-sister and the kidnapper. I was looking at the cast list and felt like it was Choi Woo Jin.  The nose, eyes (left big and right match). We haven't been introduced to him yet but I feel like it will be the typical story of how the the kidnapper is jealous/obsessed with the ML from school, etc. and wants to take everything away from him. I have also heard that the ML isn't actually the biological son and is an illegitimate one. He took the original person's name and identity, maybe that person is mad or mentally unstable and the family doesn't want to have someone like that in their family because it would be such a scandal *eye roll*.  maybe the original person has come back to take their right full place.

The one thing I am sure of is that it is revenge against the ML.

Yes, I completely agree with u. maybe it is really that new character we haven't been introduced to.

Therefore, i feel like he will come as someone important, and like work alongside the ml or fl so maybe he can observe them...since i feel like he is a planner as he has planned the kidnapping. 

and by the way he stutters maybe work alongside the fl..... 

(just guesses, all of this)

Kidnapper is the real Baek sa eon who wants to claim his identity back from ML  (ML is an imposter brought up by the grandfather of baek sa eon take his place and be the hier to him instead of the real one as real one is psychopath)

The real Baek Saeon is the  kidnapper!

Honestly, i am with you on this 😎😍

And shockingly Real identity of ML is illegitimate son of Baek Jang ho 

 swati2507:

Kidnapper is the real Baek sa eon who wants to claim his identity back from ML  (ML is an imposter brought up by the grandfather of baek sa eon take his place and be the hier to him instead of the real one as real one is psychopath)

Are u saying  hero is living under his name ? 🤔  did u read the novel ? I was thinking his mom was doing or the FL's step sister!

 Bubble123:

Are u saying  hero is living under his name ? 🤔  did u read the novel ? I was thinking his mom was doing or the FL's step sister!

Hero lives under identity of Baek Saeon when he is not the real one 

 swati2507:

Hero lives under identity of Baek Saeon when he is not the real one 

Yeah I read the novel

 swati2507:

Yeah I read the novel

Oh ok 👍 so he wanted money from him or revenge for stealing his place ? Do u have english version link of novel , I am so desperate to study it?