He said, "I was not a student that only studied, but I was not very mischievous either.  I even ranked fifth in the entire junior high school. Afterwards, my grades went downhill. I didn't do so well in high school," making people laugh.

It also appeared that he had to return quickly to the set of 'Heirs' to film for a new episode. He said, "Until yesterday, I think I stayed up for four nights straight. My brain can't work and my eyes can't see the script well after staying up four days. I generally thought I was good at learning, but it was hard to film because I really could not learn the script."

While he had to work with much older sunbaes for 'Friend 2', he got to act with people his age for 'Heirs'.  In relation to that, Kim Woo Bin stated, "The set is really fun. As soon as we are gathered, we fool around a lot. I was the maknae many times on the previous sets, but as I am the second oldest this time, I even feel a sense of responsibility. It feels different."

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Kim Woo Bin also addressed the fact that his character Young Do had continuously been excluded from any lovelines. In regards to his character's future, the actor responded, "I don't know what will happen to Young Do either."

He was asked whether he would play a rebellious character in a school uniform again and replied, "I know there is a concern in relation to being cast in similar characters, but I think the offers come because I am good at it, and as I have tried it, I don't refuse it purposely based on that reason. It is because the scenario is important. Even if another similar role comes in, if I really like the scenario, I want to do it."