InuYasha is about a half-demon called InuYasha, and a girl with a secret named Kagome. Oh, and many other demons that are trying to get Kagome, of course. Kagome has been implanted with the Jewel of Four Souls [Shikon no Tama] from her previous incarnation, Kikyou. And if that wasn't enough, she has also finds herself beening sucked into a magic well, only to land way back in the time of her ancestors. Shortly afterwards, Mistress Centipede, a giant centipede-like demon, attacks, and she reluctantly releases InuYasha to help defeat it. Unfortunately, after the demon is taken care of, InuYasha goes after Kagome for the jewel.