山垣 貞次

After the death of former Prime Minister Tsukamoto, he rose to become the president of the Shinminto Party.

He lacks the sense of justice of former president Tsukamoto, but he is not a corrupt politician intent on lining his own pockets either, so he is a man who lacks impact.

Many lawmakers say that the reason they are unable to take back the government that was seized by the Minkento Party is because Yamagaki is lacking in vitality.