First hypothesis of Oh Ri Jin's origin and/or connection to Cha Do Hyun

As we all know we still don't know clearly ORJ and CDH bloodline on father's side. I'm still not convinced that CDH is blood related to his comatose father. I am very intrigued to know which is which. I am also positive that this is not an incest drama.

I am insisting that neither ORJ nor CDH is blood related with Cha Joon Pyo at all. Why? Because granny is induring and waiting for his son Cha Joon Pyo to wake up to secure and inherit the company. WHy? because......................................my imagination is getting wild. i don't want to explain to much, as long as CDH and ORJ can make romance. That's enough.

Here's my wild guess: if ORJ and CDH is not related with Cha Joon pyo, it only means that Cha Joon Pyo is the only person who is blood related (if he really is) to grandpa. i think grandma is a greedy person, she despise CDH & ORJ because the're an outsider to the family so instead she's rooting for his son CJP.

i don't know if i am the only person who guessed that way though.

I am also curious  on others viewer's guesses might be.

you can share your thoughts here. I am very eager to know. this mystery is bothering me for awhile so i'm letting it out.

Im watching ep. 14 right now so I may update in a few when its over, but I too and hoping this is not an incest drama. I am also hoping that neither has blood relations to CJP. 

OK it's still a bit early to say for sure, but I strongly believe that ORJ is not related to CDH by blood, but by marriage (technically). This is partially by theory, but I think it's a logical assumption.

BASICALLY, CDH's dad messed up big time and caused all of this confusion. While he was his first wife, he had no children and cheated on the woman with the mistress, who the grandma hates. That mistress had CDH with the dad, making CDH an illegitimate child.

Soon after, the dad's wife divorces with him, and finds herself another man. The ex-wife has a child with the other man, making ORJ.  And then the ex-wife dies, and ORJ is kidnapped? by the ex-husband (AKA CDH's abusive dad).

Basically, ORJ and CDH are step-siblings on paper, since nobody outside the family knows that CDH is in fact a illegitimate son, and that the wife had a kid with someone else. THUS, if ORJ's existence is revealed, they will either become real siblings to the rest of the world (which would take away CDH's power/influence as the heir), or the world will know that CDH's dad was a big fat cheater--which will destroy this family's reputation. That's why granny is trying to hide the truth by smothering ORJ's existence.

I have another theory. 
I think the husband actually loved the wife, and felt betrayed when she had ORJ with another man. So the husband took ORJ and abused her every time CDH did something wrong. Wow. IF this is true, it's no wonder CDH's personality broke into pieces. The guilt would have killed me long ago.

Ep 15-16 reveals all! I'm so amazed at how they put this together. Cha Do Hyun don't hurt your heart by leaving. T-T