Sadly, actor Kim Woo Bin was only a temporarily addition to the cast of MBC's variety program 'Four Guys One Girl,' which is why his farewell came all too soon.

His final episode aired on April 25, showing him leaving one day earlier in order to engage in filming for his next movie and saying farewell to his adoptive parents on the show.

SEE ALSO: Kim Woo Bin holds his first fan meeting in 5 years

Throughout the show, he had shown his kindness and affections as he took care of his adoptive parents.  As he got very close to them, he could not help but express his sadness and regret at leaving them.

He said in the interview portion, "It's regrettable and saddening.  I should've talked with them more and held their hands," expressing what he wished he had done differently.

He then addressed the parents, "I was very grateful.  Be healthy.  I love you," shedding tears.

Did you enjoy seeing him on the show?