It's Chinese.
尊重 = respect, honor (ie. respect parents and elders)
乾盛 = prosperous (historically, it was used during the Ching Dynasty, the Emperor 乾隆, it's used to describe how when he was in throne, China was prosperous)
There are proverbs in Japan that comprises of 4 kanji called åæçèª which originated in China. But as the one in the tattoo doesn't seem to feature in the known list of åæçèª in Japan, I would say it is entirely Chinese.