Ungai

is a monk known by Miroku.Not understanding the relationships between Sesshōmaru and Rin, and Inuyasha and Kagome, Ungai tries to warn Rin about not following Sesshōmaru but she rejected it, for her friendship to Sesshōmaru. He also asks Kagome why she stays by Inuyasha, but dismisses the thought after she fails to reply.

History
Ungai was the leader of a group of demon hunting monks. As he and his men meet InuYasha and his friends, he first shows his disapproval about the fact that Shippō and Kirara are among them. Assured only when Miroku and Sango assured that the two would never do something. He refrains from fighting, but still threatens that they should not get in his way.

Later, he and his men on the hunt for Ongokuki, a demon who robs children. Among the abducted children is also Rin, which was lured away by the demon from her camp. Ungai and his followers are able to defeat the demon. Then Sesshōmaru appears. Rin runs to him, but Ungai do not want her near a demon, and prevents her from approaching him. Shortly thereafter, there is a struggle between Ungai's people and Sesshomaru. Sessehōmaru is able to defeat them fairly easily. He tells Rin that she can decide for herself whether to stay at his side. To Ungai's dismay, Rin decides to follow Sesshomaru.

When he and his men pick up the reward for the destruction of the demon and saving the children, he meets Inuyasha's group again. He sees InuYasha next to Kagome and asks her why she is in the company of a demon. She initially does not reply, but he resigned his question, and says that he would rather not want to know the answer.

Personality
According to Miroku, Ungai is merciless against all yōkai.

Trivia

 * He only appears in Episode 162 of the InuYasha anime.
 * When Ungai first meets Inuyasha (During the night of the new moon), he warns him against using his demon sword. Despite their animosity for each  other, they both share the belief that humans should not be in possession of demon weapons.

Ungai 云涯