Zushinezumi

Zushinezumi is a rat demon who owns a shrine that is able to release numerous rat demons for hunting purposes. He was killed by Kohaku, who killed him under the order of Hakudōshi. The rat demons multiply when cut in half. The rat demons are almost invincible; as they cannot be killed when sliced or cut. The only way shown in the anime is using a poisonous tree that attracts and poisons them. The tree requires a very strong spiritual power.

Zushinezumi 厨子鼠