Reduction in voter representation disparities is good for democracy in Japan but bad for Kumamoto, which will lose a seat:

“The 295 lawmakers currently elected from single-member districts will be reduced to 289, with Aomori, Iwate, Kagoshima, Kumamoto, Mie and Nara prefectures each losing a seat.”

– Kirk

http://www.japantimes.co.jp/news/2017/06/09/national/politics-diplomacy/diet-finally-enacts-electoral-redistricting-law-correct-vote-weight-disparities-across-japan/#.WTv3TsaB3m0