@John *********
I see the Seoul embassy says that visa applicants need to "reside' in Korea. But they don't say what their definition of "reside" is. For instance, the Thai e-visa system uses "residency" interchangeably with "physical presence." Applicants in Vietnam, for example, are not residing there, but they are asked to provide their "residency," using the same word, to provide their address of temporary stay. You are best off asking the embassy directly by email. The Seoul embassy did approve a DTV for a tourist on at least one occasion, as some in this group reported. Maybe they don't get many DTV applications, so they're willing to review applications from short-term visitors.