The episode synopsis came from writer Chris Regan's unsuccessful attempts to pitch a Family Guy story to the writers, and then offhandedly mentioning that he himself was in a Korean soap opera.
An unused B-plot involved Stewie worrying that he might become a redhead according to the press release. In addition, neither Stewie, nor Brian appear. Chris and Meg appear, but do not have any speaking lines.
In addition to being a soap opera star, Quagmire reveals that he also polishes rocks as a hobby.
While talking about the Dinner she'll prepare for the guys, Hee-Sun says "We will have many things you will nibble at, but not eat. Then, I will give you a pizza." but later at the dinner table we see they actually do eat the Korean food Hee-Sun prepared, and there's no pizza in sight.
According to the DVD commentary, the credits to Winter Summer are actual names of Family Guy staff members.
The commentary also makes light of the fact that during the scene of the guys landing at the airport, they pass a statue of an airship taking off from a globe that has been likened to a penis and testicle.