In a past interview, Park Seo Joon revealed that he felt uncomfortable approaching female costars.
He was worried a misunderstanding would arise when he approached them.
It’s inevitable for me to be more comfortable acting with male costars rather than female costars.
Whenever I approach them, I can’t help but worry about how others will see it.
Even if I approach them with an innocent intention, there are times where people will think I’m interested in them.
— Park Seo Joon
He then explained that he was very grateful to be working with other male stars in his past film, Midnight Runners.
In that sense, I had the same humor codes as Kang Ha Neul, and we were both males (laughs) so it was comfortable for me.
— Park Seo Joon
Park Seo Joon has since starred in another film since Midnight Runners called The Divine Fury as well as the popular K-Drama Itaewon Class.
His K-Drama Gyeongseong Creature is currently in the works and has also starred in movies Concrete Utopia and Dream.