Actor Shim HyungTak is now ”worried” about the umbilical cord... Saya says ”Is that Gopchang?” = ”Groom training”

Shim HyungTak and his wife Saya will be sharing their daily lives two weeks before the birth of their child.
A's variety show "Recent Men's Life - Groom Lessons" (Japanese title: Groom Lessons)
In episode 147 of "Business," Shim HyungTak and his wife Saya are shown spending a day sorting out baby supplies for their 2-year-old son Sebok (fetal name), who will be born in two weeks.
On this day, Shim HyungTak started the day by doing "morning yoga" with Saya. He gently rubbed Saya's lower back and
While I was helping her move around, he asked me, "Maybe I've disturbed your sleep. I snore when I'm tired, don't I?"
He continued, "In two weeks, there will be another child in this house," expressing his heartfelt emotion, but added, "The doctor said, 'Everyone who becomes a father has to cut the umbilical cord. It won't be cut in one go.'
"But I'm still scared," he confessed, expressing his turmoil. Saya then responded to Takeshi, "I think the umbilical cord is 'kopchang (beef small intestine)'."
Shim HyungTak bursts out laughing and nods, saying, "Oh, you mean pork belly." After a while, Shim HyungTak jumps up and says, "I can't put it off any more."
Then, they rushed to sort out the baby items that filled the living room hallway. Kim Jung Min, a "groom-to-be" who was watching this from the studio, was surprised and asked, "Why is there so much?" Moon Se-yoon
"Maybe I should have one more child. There are a lot of easy things out there. I'll have to talk to my wife about it," he said, drawing laughter. Shim HyungTak, who was in the middle of sorting out baby supplies,
He then slips into the bathroom and doesn't come out for a while. Saya is confused when she finds her husband in the bathroom after searching everywhere for him. Shim HyungTak also uses skin care products.
With his eyes closed and wearing a mask, he responded seriously, "I want to be told later at (Sebok's) kindergarten and elementary school entrance ceremony that 'You haven't aged at all.'" Saya said,
Shim HyungTak, who became "Iron Shim," explained the reason for the change by saying, "I thought he would be more popular," drawing laughter. Shim HyungTak has indeed become "the man who manages" the second generation.
What kind of reaction did Saya have to the baby? The identity of the guest who made a surprise visit to Shim HyungTak and Saya's house to celebrate the birth in advance was revealed on Wednesday the 15th at 9:30 pm in Korea.
This can be seen in episode 147 of "Groom's Lesson," broadcast on Channel A.