The Momokyokai Yakuza is a yakuza organization operating in Namimori.
It has two groups of members whose levels of strength vary. The first group's members are dressed in suits and have neat hair. The second group is dressed in a more yakuza-like fashion, looking rougher.
Their leader is Satoshi Nishikawa ((西川 智, Nishikawa Satoshi?)). Even though he is the leader, he still dresses plainly, e.g. T-shirts.