Inuyasha
Kagome Higurashi is a fifteen-year-old girl who lives at a Shinto shrine and falls into the old well in the storehouse. She emerges five hundred years in the past, in the Sengoku period, in a Japan populated by demons, monks, priestesses, and things considerably worse than any of them. She also awakens Inuyasha, a half-demon pinned to a sacred tree with an arrow for fifty years, and accidentally shatters the Shikon Jewel, a jewel of immense power, into hundreds of shards that scatter across feudal Japan.
They have to get the shards back. Naraku is trying to get them first. This is the arrangement.
Produced by Sunrise and directed by Yasunori Ide, Inuyasha aired on Yomiuri TV from 2000 to 2004. One hundred and sixty-seven episodes of the original run, followed by Inuyasha: The Final Act in 2009, twenty-six episodes that complete the story the manga had finally finished. Adult Swim carried it for years. The fansub community carried it before that, and the uncut versions circulated heavily alongside the broadcast dub for viewers who wanted the story without the edits.
The cast is Takahashi at her most generous: Miroku, a lecherous monk with a wind tunnel in his hand and a death sentence ticking down; Sango, a demon slayer hunting the creature that destroyed her village; Shippo, a small fox demon who contributes mostly by panicking; and Sesshomaru, Inuyasha's full-demon elder brother, so comprehensively cold the show essentially had to invent a separate arc just to give him a reason to exist near the main cast. It works.
The love triangle between Inuyasha, Kagome, and the resurrected priestess Kikyo is the emotional center. It is messy in the way Takahashi's best work is always messy, not because the writing is confused but because the feelings are.
Start with the original run. Watch The Final Act immediately after. Do not stop in the middle.
Guides and reference pages for this series. More coming.