祭礼の蛇
(English: [b]Snake of the Festival[/b])

The ultimate villain of [i][[Shakugan no Shana]][/i] and anime's biggest walking spoiler. [spoilers]Basically the Satan of this series' mythology, the Snake shows up in the third season... in the body of [[Sakai Yuuji]]. [[Shana]] and the rest take this about as well as you'd expect.[/spoilers]

[spoilers]This tag is used for the Snake either in Yuuji's body (distinguished from his usual look by long hair) or his real body (a huge black snake).[/spoilers]
sairei no hebi