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Despicable Villain! The Mystery of Onigumo!


InuYasha Season 1 - Episode 20

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Episode information


Asamashiki Yatō, Onigumo no Nazo


あさましき野盗 鬼蜘蛛の謎




My Will


65 (p. 3-18), 66 (p. 2-4, 10-16), 67 (p. 2-15) and 68 (p. 2-16)


Original Airdate

19 March 2001

English Airdate

21 December 2002 (Adult Swim)

Episode Statistics




The Beads of Subjugation


(no credits available)

Despicable Villain! The Mystery of Onigumo! is the twentieth episode of the InuYasha anime. It first aired in Japan on March 19, 2001.


  1. Kagome is stuck in the modern era, unable to return to the Feudal Era without a shard of the Shikon no Tama.
  2. Kaede tells Inuyasha and Miroku about a man named Onigumo, a bandit whom Kikyō had cared for 50 years ago; they visit the cave where Onigumo laid, and feel the overwhelming presence of a demon.
  3. Naraku unleashes Rōyakan, whom he is controlling with the use of a Shikon no Tama shard, on Inuyasha.



Kaede reveals to Inuyasha and Miroku that in a nearby cave, she and Kikyō once cared for a badly burnt thief, who ended up lusting for Kikyō and allowed his body to be consumed by yōkai from his desire for her and ended up creating Naraku. [...]

Naraku soon unleashes a corrupted Rōyakan upon them since Inuyasha is too injured to fight back and Miroku cannot use his wind tunnel with Naraku's Saimyōshō in the air.

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Characters in Order of AppearanceEdit

Differences from the mangaEdit

  • The anime omits the scene of a fake Kikyō appearing in Onigumo's cave in Naraku's effort to provoke Inuyasha.
  • In the anime, Rōyakan escapes Miroku's Kazaana by slamming on the ground. In the manga, however, Miroku closes his Kazaana right before Rōyakan is sucked in in an effort to find out who set Rōyakan up to attack Inuyasha.
  • When Naraku gives Rōyakan another Shikon shard in the manga, he finds Rōyakan in a cave and inserts the shard along with a seed that will crush Rōyakan's head. In the anime, however, Naraku finds Rōyakan in a forest, and the Shikon shard has no such seed on it.

◀ Season 1 
Episodes 1  •  2  •  3  •  4  •  5  •  6  •  7  •  8  •  9  •  10  •  11  •  12  •  13  •  14  •  15  •  16  •  17  •  18  •  19  •  20  •  21  •  22  •  23  •  24  •  25  •  26  •  27
Themes Change the World  •  My Will  •  Fukai Mori
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