Jaejung, ”Did you think you were a former member?” during the filming of ”TVXQ” music video... He learned about his ”adoption” after his debut = ”Radio Star”

Singer Kim Jaejung revealed that he found out about his adoption after debuting with TVXQ.
On the 16th, MBC variety show "Radio Star" aired,
Kim Byung-man, Kim Jae-jung, Kim Dong-jun, and Cao Lu (formerly of Fiestar) appeared as guests on the "Masters of Dance" special.
Jaejung, who has eight older sisters, said, "I was adopted at a young age. When I was three years old, I went to a house with many daughters.
I found out later, after I debuted," she said, revealing the fact that she was adopted.
She continued, "I found out late, and even bringing up the words 'family' and 'adoption' made me feel uneasy.
"It was a bad experience," she said. When asked when she first found out she was adopted, she mentioned the song "I Believe (Mi Do Yo)" by TVXQ.
Jaejung recalled, "I was shooting a music video in Busan when I got a call from a number I didn't recognize. They were saying, 'Jaejung, were you interested?'"
He continued, "I made a photo book at work. It's a picture of me when I was young, before I was three years old, and my family came to see it." Jaejung said, "When I was young, I had to hide the fact that I was adopted.
My sister is only 10 months younger than me. We went to the same school, but I never celebrated her birthday on her actual day because I was afraid it would cause rumors in our small city.
He expressed his regret and gratitude to his sister who was killed on her birthday. Meanwhile, "Radio Star" is a unique personality that disarms guests with his unpredictable storytelling and draws out the real story.
It's a talk show.