The group of
seven mercenaries ('Shichinin-tai' means 'Seven-man
army') from the anime/manga Inuyasha. Ten years before the main Inuyasha story takes place, they are decapitated by those who fear their power. Naraku revives them in hopes that they can
kill Inu-tachi, Kouga, and Sesshoumaru for him.
The seven members are as follows:
Bankotsu
Jakotsu
Suikotsu
Renkotsu
Ginkotsu
Mukotsu
Kyoukotsu
The -kotsu at the end of each of their name means '
bone', referring to the fact that they were revived after being nothing more than a pile of bones.