In Germany after the official surrender there was still occasional trouble from fanatical SS/HY holdouts who fought to the last man and a half-hearted guerilla resistance campaign, the Werwolf movement.
Did occupation troops in Japan after the surrender face any trouble? Did the Japanese have any equivalent to the Werwolfs? Given how ferocious they were it combat it seems strange how servile and cowed they were during occupation (granted two massive bombs and the command of the god-emperor might have something to do with that). All I can find on Google is tales of the holdouts in the Pacific rather than Japan herself.