Mimisenri

was an elderly yōkai who had very good hearing thus was said to be able to hear everything that happened all over the entire world. Naraku knew of Mimisenri and his ability thus made him part of his plan too by asking for the sage to help the hanyō to reveal the location of the final shard of the Shikon no Tama to him.

History
When Naraku appeared before Mimisenri, the large eared demon asked if Naraku planned to absorb him into his body so that he could hear things extraordinarily well too, but Naraku replied he had no interest in absorbing his filthy body. Mimisenri heard Naraku coming from "four miles away" and asks if he's seeking information on the Shikon shards, hearing from numerous demons that Naraku had gathered most of them. Naraku corrected him and said there is only one shard left he could not find, so Mimisenri strained his ears, listened for rumors on the jewel, and told Naraku that the final shard is in the Borderland between this world and the afterlife.

Riku visits Mimisenri after he heard rumors that Riku betrayed Kirinmaru. After Riku admits that the rumors are correct, Mimisenri warns him that he can't escape Kirinmaru if he seeks revenge. The calm and confident Riku claims he won't run from Kirinmaru while he enjoys his newfound freedom. While Riku vaguely declares he'll do whatever he pleases from now on, fans are left wondering what exactly it is this entails.

Mimisenri assumes that Riku wants to get involved with Sesshōmaru's twin daughters and warns against the dangers of interfering, but Riku reveals that he's once again set on collecting all of the Rainbow Pearls. However, Riku doesn't reveal why he wants to collect the Rainbow Pearls this time around, which leaves several possibilities open.

Personality
He is a calm and composed demon, though he ironically asks Naraku if he wants to absorb him to get his ears.

Powers & Abilities
Mimisenri had the ability to hear everything that happened in the world, even under water, and possessed great wisdom because of this.

Trivia

 * For some reason in the English dub of the Anime in the very first episode, he appeared in Episode 127: Don't Boil it! The Terrifying Dried up Demon with his first debut on screen with Naraku and spoke to him. Naraku addressed him with the wrong name and called him "Mimisendi" instead of the correct "Mimisenri". It is possible that it is less correct by saying "Mimisendi", but it is hard to tell in that particular part of the speech.
 * For some reason, Mimisenri appears along with Naraku and his minions in the opening "One Day, One Dream", despite only having a minor connection to him.
 * Mimisenri's name and his ability resembles to two character from the Chinese mythology; his name is the combination of  (adapted from 順風耳 ', "With the wind ear") and (adapted from 千里眼 ', "Thousand miles eye"), his ability is the same as the Shunfeng Er.
 * His seiyū, Junji Nishimura, also worked on Rumiko Takahashi's previous series, such as Ranma ½ and Urusei Yatsura, as part of the production crew.

Media appearances
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Manga

 * Chapter 287

Anime
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 * Episode 127
 * Episode 128
 * Episode 26 (Hanyō no Yashahime)

Mimisenri Mimisenri Mimisenri 顺风耳