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Goguoufuuin (Five-part Seal)
First Performed by: Orochimaru
Type of Technique: FuuinJutsu
Chapter: 49

This is a very powerful and foribdden sealing Jutsu, which is used to seal over even numbered seals. However, before going into further detail, I will explain some simple facts about seals. All sealing Jutsus use symbols; there are many numerous symbols in each seal, and many sealing Jutsus consist of many different seals, so the number of symbols increases. All those symbols accumulate into major ones, and thus once the Jutsu is performed, only a few symbols are visible. Depending on the number of the visible symbols, a seal is considered either odd or even numbered. Also, these symbols are mostly in a repeating order. There may be spaces between them, or they may be closed. It all depends on the shinobi.

An example of an even numbered seal is the one performed by the 4th Hokage to seal the Nine Tail demon fox inside Naruto, which to be exact, contained 4 main sealing techniques. However, those seals had spaces in between them. This creates an opening for Kyubi's chakra to interact with Naruto's, giving him control over both the Demon's and his own Chakra. As a result, he can control his Chakra with little to no trouble.

However, this seal, Gogoufuuin, has a completely different effect; it seals the even seal by using 5 symbols, instead of the normal 4, and "blocking" the holes in between them. The 5 new symbols are placed on top of the 4 old ones, alternating the effects of the even seal. Its effect is that the person that is sealed within this seal will be so exhausted he/she may be resting for days. The main effects, however, differ. In Naruto's case, many devastating and drastic effects can appear. A long-term effect is that it does not allow the two chakras (Naruto's and Kyubi's) to mix up, thus making Naruto really unstable with his Chakra. It doesn't do any physical damage, which is obvious because it is a sealing Jutsu.

Here is how it is done: By focusing Chakra into his hand, Orochimaru performs a one hand seal, unique for this Jutsu, and then opens one hand, palm facing outwards, and fingers wide apart. He then creates 5 small fires on each finger, which undo the seal on Naruto's stomach, thus blocking the two chakras within him. This Jutsu is reversable; however, it requires a very highly skilled person to unseal it, and allow Naruto to control his chakra normally once again.