Jaejung, the secret of his first kiss revealed after 30 years... All the love letters his sister sent to her brother are cut out in ”Convenience Store Restaurant”

Singer Kim Jaejung is drawing attention by looking back on his unforgettable first kiss. On the KBS2 variety show "New Product Launch - Convenience Store Restaurant" broadcast today (27th),
In the episode "Convenience Store Restaurant," Jaejung and his sisters, who boast a cheerful charm, will be seen having fun together. In the process, Jaejung's sister, who was handsome from a young age, will be revealed as a popular student.
In the VCR released that day, JAEJUNG gathered in the living room with his 1st, 2nd, 6th, 7th, and 8th sisters and had a drink.
The younger brother talked enthusiastically about his childhood, school days, and other past times. In particular, JAEJUNG cooked simple snacks for his older sisters using ingredients he had in the fridge.
As the conversation continued over delicious snacks, my sister talked about how popular JAEJUNG was when he was young. When JAEJUNG said that he wasn't that popular, my sister cautiously opened her mouth.
She then said, "No, JAEJUNG was popular. There is a secret that JAEJUNG doesn't know." She then poked fun at JAEJUNG's youngest sister and said, "Actually, there were some female students who liked JAEJUNG.
The eighth sister surprised Jaejung by revealing, "My eighth sister arranged everything in between." The eighth sister said, "In order to meet my brother, I had to go through my own procedures.
I cut out all the love letters," making everyone laugh. Jaejung was stunned by the truth he had learned after 30 years, and he said, "But my first kiss in my school days was..."
When he shared his memories of his first kiss, his eighth sister surprised everyone by revealing the truth about that day. What was the truth about his first kiss that JAEJUNG didn't know?
Meanwhile, the truth will be revealed on KBS 2TV's "New Product Launch - Convenience Store Restaurant," which will be broadcast at 8:30 pm today (27th).