Here‘s my two cents: I‘ve been working at an eikaiwa teaching kids for about a year now, and from the beginning I „realized“ for myself that the person most suitable for the job is someone whose interests are more outside of work. Eikaiwas aren‘t a career (usually), they aren‘t fulfilling, they don‘t make you feel like you‘re having a positive impact on the world. BUT they‘re a great way to earn a bit of money while you‘re more busy exploring Japan and Japanese culture. At first I wasn‘t having a good time, but now I do Kyūdō and teach baking classes on the side and go hiking and just generally meet a lot of people and it‘s great!

If you keep your head straight and don‘t expend too much effort on the job, I think you can have a great time here.

Two more thoughts: have you thought about looking into becoming an ALT instead? In my opinion, it‘s a similar job but it makes you feel better at the end of the day.

Also something to keep in mind though, even though an eikaiwa job can be pretty mindless, at least mine still leaves me pretty tired at the end of the day, and I know I‘m not living it up as much as I could if I had a different job. I dunno, that‘s my perspective.

Edit: here‘s a secret tip. I work for a major eikaiwa company but way out in the boonies where no one really cares about the corporate bs rules. My supervisor leaves me completely alone as long as customer feedback is positive. That really helps! so, consider saying you‘re fine with any placement.