If Lin Yi hadn't been the only one who spoke South Korean, they really would have been stumped.
He had to act as an impromptu South Korean translator, explaining to the audience at the scene so everyone understood what was going on.
Lin Yi knew what the Gangnam she was talking about was: it was the south bank of the Han River in Seoul, South Korea—specifically the Gangnam District, a major commercial and wealthy area in Seoul.
Chapter 421