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North Gatekeeper:

This is the keeper of the North Gate, handpicked by Orochimaru:
User must have the Earth Seal

East Gatekeeper:

This is the South Gatekeeper, handpicked by Orochimaru himself: Nobooru Kurama
User must have the Mind Seal

Jutsu:

All members of the Sound Five are defenders to the village and each one naturally possess these jutsu to better defend Otogakure.

Name: Guardians Mark
Type: Ninjutsu
Rank: E ( S-rank supplement )
Element: N/A
Chakra: 1
While within the parameters of the four gates of Otogakure or half a kilometer outside of the gates a Guardian has access to powers sealed within the gates. By simply meeting a person and touching them once a guardian of Otogakure places an invisible mark upon the individual that is linked to the dark power of the gates. Whenever a marked individual enters one of the gates a signal goes out to all guardians identifying who entered the village and where. The only way to remove a Guardians Mark is to defeat the guardian that placed it. Having a Guardians Mark does not adversely effect a shinobi in any way, though it does give access to other jutsu for the guardians use.

Name: Four Gates Expulsion
Type: Ninjutsu
Rank: C ( S-rank supplement )
Element: N/A
Chakra: 20
One of the jutsu of the guardians. Having marked an enemy any guardian can choose to launch a marked person from the village that they don’t want to have in there. Making a single hand sign the guardian connects to the gates and influences their power, invisible lines of chakra grab the marked individual and yank them from the village, throwing them just outside of the barrier. ( effective strength 1500 ) The gates continue to pull in case someone attempts to resist.

Name: Guardian Prohibition
Type: Ninjutsu
Rank: C ( S-rank supplement )
Element: N/A
Chakra: 5
Once an individual has been expelled from the village a second special mark appears on them identified by the gates. Once the person comes within half a kilometer of the gates in any direction a special signal goes to all guardians identifying the specific individual. At that time any gatekeeper can choose to deny them access by a single handsign. For the rest of the day an invisible barrier appears around the village that prohibits the individual from entering the village for 24 hours.

Name: Four Points Infernal Flame Barrier
Type: Ninjutsu
Rank: B ( S-rank supplement )
Element: N/A (Dark)
Chakra: 30 ( initial activation, 5 per hour {see below})
A powerful destructive force bound into the four gates of Otogakure. If nothing else then this is evidence of dark powers infused into the structures. When all gate guardians are in agreement they perform a few hand signs to synchronize with the gates pouring dark chakra into them where it is amplified and discharged. The entire village becomes surrounded by an all enveloping curtain of black and violet flames. During this time anything touching the flames from the outside instantly catches fire while there is only a barrier from the inside. The barrier remains active so long as chakra is supplied to it. Each guardian unconsciously provides chakra to gate each hour unless they choose to end the jutsu. Any time a guardian fails to provide chakra the cumulative drain is passed on to one of the other willing guardians. The jutsu only ends when all gate guardians choose to drop it as well as the village guard.