Yes, they need to be gone and quite frankly Jun Ho needs to be gone from his position also. He has no money, power…
He doesn't have to fire either of them. He can kick Hong Ju out of the house. She and her mother do not have to live with them.
He can send Jun Ho on a job-related task out of the country for a few weeks. Jun Ho will notice because he has nothing else to do but notice. They are leaving him alone instead of keeping him busy at least.
Setting Jun Ho to take over the main villain role? I don't think he has the background or business experience to pull off what it looks like he is planning, but driving a wedge between the Chairman and Baek Ho looks like where he is starting.
We re in for a slap & torture fest. I think JH will find some leverage to rescue his parents.
If Hong Ju finds out that dummy will certainly tell him. The Chairman needs to get them out of the house anyway. He doesn't even sleep with her mother and they serve no purpose for him now.
He can send Jun Ho on a job-related task out of the country for a few weeks. Jun Ho will notice because he has nothing else to do but notice. They are leaving him alone instead of keeping him busy at least.
Trailer
https://www.youtube.com/watch?v=uB4rjdEbzIU