otouto understood what i was saying *giggles* naruto verse worships the shinto gods and goddess's and as demon said the shiki fuin summons the shinigami but the price for that seal is not being able to go to the pure world or yami but into the shinigami's stomach to forever battle with what the seal was used to seal and if i'm not mistaken the shiki fuin is based of the uzumaki clan's shinigami mask summoning ability ^^ and btw i'm impartial in reviewing CS's as a co-gm for my otouto for any issues i might see that otouto hasn't already pointed out.  nya~