Why the E-2 is a genuine no
South Korea's E-2 teaching visa requires both a bachelor's degree in any subject and citizenship of one of seven approved countries. Unlike Japan, there's no working-holiday-style degree-free route built into the standard teaching visa system, and TEFL hours don't substitute for the missing degree in any accredited or legal sense.
This requirement is checked directly by Korean immigration against your submitted degree documents when your employer files your E-2 application, so there's no plausible way to teach on this visa type without one.
