Kasai Militia

The Kasai Militia is an organization of ninjas from Kasai Village who fight to protect the village and also go on missions to aid with the world and hinder the Tekiyoku.

History
The Kasai Militia was formed in Kasai Village long before the main events of Tears of the Fallen, but back then, its main duty was to protect the village and run various missions. Since the Tekiyoku started its reign, the militia expanded to also do things to hinder the Tekiyoku and help those troubled by them.

Although it's not explictly stated in the village's history, it's likely that some of Kagetomo's supporters who helped him attack the village before the start of the series were members of the militia. The militia was then under Heidayu's leadership and he wasn't on Kagetomo's side at the time, so these were traitors who believed in Kagetomo's ideals. After the attack, those who were aiding Kagetomo were arrested, while Kagetomo fled the village.

Present
During the first events of Kasai Village in the series, it became clear that the militia was divided and members had different people they dedicated their loyalty to. The only confirmed person at the time to have a separate unit within the militia was Saizo. People were either dedicated to him or they were dedicated to the leader, Heidayu. Saizo's unit was currently stationed in Unova.

Later, Heidayu called a meeting with some of the militia members who were more dedicated to him, namely the ones not in Saizo's unit. This meeting turned out to be a plot to spread a fake rumor that Ghetsis was about to terrorize Unova in order to get Ippei sent out to aid Saizo's unit. They would then kidnap Ippei as part of a plan to get Heidayu picked as the new village chief instead of Ippei.

The plan went well and Ippei was kidnapped and held captive in the militia base. Heidayu, along with a few other militia members, went to the middle of the village and held Hanzo, the current chief who was about to retire, and his second-in-command, Shinobu, hostage. The idea was to force Hanzo to finally announce Heidayu as the new chief.

Saizo, who had gotten word of Ippei's mission, noticed that Ippei was taking long to arrive to where he was in Unova. He dispatched his militia unit back to Kalos; they entered Kasai Village and went to the militia base. There, they fought the members guarding Ippei and rescued him. At the village, one of Heidayu's militia members ended up fighting Ippei, but was defeated, leaving Ippei to fight Heidayu once and for all.

Later, after Heidayu lost, he fled the village and those in the militia who helped Heidayu were arrested. Ippei was then announced as the new chief of the village and Saizo was the new Kasai Militia leader; there were then no separate units within the militia. The arrests drastically reduced member numbers, but a determined Saizo worked to shapen up the militia and rededicate everyone's loyalty to the entire organization.

Known Members
This is a list of former and current known members of the militia. Most are unknown, as many skilled ninjas in Kasai Village are in the organization, but aren't characters in the series.
 * Heidayu Ichioka (former member and former leader)
 * Saizo Kosuke (current leader)