Actor Ji Jin Hee said that his perspective on his birth was changed after an error in his blood type test.

He revealed, "When I enter junior high school I do blood type test first. As I am type A I went back home and asked my parents for their blood types."

His mother was a type B, while his father was type O.

"I wanted to understand how that was possible. I even thought about becoming a reader because, as an only child, I wouldn't have children of my own."

In the same interview, Lee Hyung looked shocked, chuckled, and asked, "Did your mind run to that when you were in middle school?"

Ji Jin Hee also revealed he thought of finding his real parents, explaining, "I wondered whether I should reveal to my parents who raised me very well, and what I should do with the secret of my birth."

"I wondered why they abandoned me. And those who abandoned me came to think that they were not my parents."

"I have never searched for my biological parents because I had the mentality that the ones who raise me are my parents, and they believe they are my parents as well."

Ji Jin Hee discovered that he was adopted when he joined the army.

He mentioned, "The test in the army came back with a B," referring to the revelation about his birth being a result of an "error."

Ji Jin-hee humorously added, "They say that if you live together, you start to resemble your parents. I thought I really looked like them," which prompted laughter from those around him.