Hi Huyen,

Here is my take on this as a college level American born English speaker.  I will add explainations after I show how I would write what you've written.  Your English writing is excellent.  Much of what I did is drop the implied text.  BTW I've seen WGM.

I’ve just watched a Korean reality tv show, called We Got Married. On one of episodes, the main couple, is required to welcome a foreigner. Unfortunately, the couple can only speak a little English, so the whole conversation is usually yes or no questions.  I can feel the moment when both the couple and the guest want to communicate with each other but their ability is limited.

 I imaged I was a interpreter and helped them speak together.  To Fancy, (an Afghanistan man),

     "Hi, Fancy,  I’m Huyen. I’m here to help you make sense with what is happening.  I will tell you about the show and the couple you are meeting.   As you know, This is a reality tv show about newlyweds. The catch is that all couples haven’t dated yet in real life or even met each other before. When they participate in this show, they become a couple and will have time to date before getting married in the show.  The "dating/ marriage" usually lasts 4 or 5 months depending on the writers and the couple's relationship.  The couple doesn't marry legally in their real lives and will separate at the end of the season.  The premise of the show is that two celebrities play house.  Today, You are the Adam couple’s guest. They are 3 months newlywed, and their job is to help you to become familiar with the Seoul lifestyle."

i hope the explainations make sense. Everything is run together because of character limitations. Questions ? Let me know. Hope it helps.