Wakayama

Wakayama is the current Prime Minister of Japan (内閣総理大臣, Naikaku-sōri-daijin, or 首相, Shushō). He is the highest ranking government official in the nation of Japan, and a long-time associate of the Tsukiyama family.

Mirumo Tsukiyama
Wakayama and Mirumo are close family friends, and seem to have a cordial relationship. This includes Mirumo being able to directly contact him at any time, and make personal requests that the Prime Minister uses his authority to fulfill.

Powers and Abilities
Wakayama is the highest government authority in the nation of Japan, governing the nation under the approval of the Emperor and the National Diet. As such, he has considerable financial, bureaucratic, and military resources at his disposal.

Trivia

 * Wakayama is a fictional character, taking the place of the current Prime Minister, Shinzo Abe.