Staying in Japan for 6 months

Hi guys, I know this is a little different than most posts here.

Basically I live in a European country, and got my money from some inheritance (around 5k euros).

I'm kind of lost in life, and I feel like me getting this money and the fact that the Yen is at a historic low is a sign (not on some schizo stuff lol, just it feels like my dream of living in Japan is finally at least somewhat feasible).

There's probably no way I could get a work visa or anything of the sorts, but from my understanding my countries passport allows me to "live" (read visit) in Japan up to 6 months a year (2 3 month long stays, so after 3 months I would go out the country then fly back (if that's how it works)).

Now my problem is, what type of place can I look for?

I believe renting an apartment is unfeasible, due to me not having a permanent VISA and probably being a foreigner would complicate stuff.

Hotels are too expensive.

Is there a place that I can rent, up to about 500-600 euros (80k – 100k YEN) a month, without a lot of contracts and hassle?

I have a freelance job on the internet so I should be somewhat financially fine, especially with the YEN being so low. EDIT: okay so working is impossible even in this capacity. But I really want to go through with this, and I have some savings, so let's say I don't work for 6 months, which should be possible for me if I live somewhat frugally.

It doesn't have to be Tokyo or any other major city.

Thanks in advance for any advice.

EDIT: Just contacted my local embassy about a Working Holiday Visa, and surprisingly they told me it should be no problem to obtain in my current condition and I can stay in Japan while being able to work (remote or on location). Thanks for the help everybody.