I have no real knowledge of this, but if you check the schedule currently on boxrec for Japan, two of the first three fights to come up have mismatch all over them.

Yasutaka Kuroki (18-3) v Wattana Ponnak (debut)
Yoshinori Kowatari (7-1) v Viratnoi Sithsoei (0-1)

And those two victims there both being shipped over from Thailand. That being said, I can't see that many records on the schedule that look like a journeyman loser's record like, for example, Tony Booth's in the UK.