Yep, he didn't remember the face of his friends, and only remembered the name so it makes sense now
He also thought the blonde friend is his childhood friend because he got the same scar when they met in high school
We don't even know if Candy really had a scar from that incident, the blood from his hand when he was a child could have been Hajun's blood that splattered on his shirt or maybe he only sustained light wound that wouldn't even make a noticeable scar.
Exactly, so it"s just hajun supposition
Wait so what about the other Yunjae? They just have the same name and that's why he thought the blonde guy was the real one?