Thank you, so I thought. I may stay 2 weeks or first month) then come back to Thai while my initial 3 months visa (with one re entry and possible extension if needed) is still valid.
I have to use Japanese bank statement to get 90 days stay visa with which I can open a bank account with a Thai bank. Then, once I have that account, move 800K THB into it, leave the funds to season 2 months and then apply for O visa.
There was a story in Japan press about a Chinese woman who switched her left and right fingertips (ooouch, surgicaly, in China) trying to fool the Japan Immigration.
Since the story made it into the media, they got her.