You want to settle down here? Get used to it first before making such a long-range goal. Try to get on the JET programme
www.jetprogramme.org for starters, simply because it pays more, provides airfare (few places do), and puts you in public schools, not conversation schools, and the hours are better. To come here fresh out of college thinking you can find a job here is one thing (you can, but it will be mindless grunt work), but to prepare yourself for the long haul is totally different. People see TEFL NOT as a long-term thing. You can't teach conversation school forever. Tenure in mainstream schools and universities are rare. Salaries are falling. Universities here are closing or merging due to the declining birthrate. The government just did a 180 on putting English in elementary schools. It's not all a bed of roses. Trust me. I've been teaching here almost 9 years, including conversation school, private lessons, private HS, and university.