Four Symbols Seal

Used as part of the Eight Trigrams Sealing Style, the Four Symbols Seal helps Naruto Uzumaki access the chakra of the Nine-Tailed Demon Fox sealed within him.

The seal also usually appears at the stomach of the users of the Dead Demon Consuming Seal after their target (and the user's own soul) is sealed at the Death God's stomach, such as what happened to Hiruzen Sarutobi after sealing Orochimaru's arms.

Killer Bee has remarked that this seal is high-quality and more durable compared to the Iron Armor Seal that holds the Eight-Tailed Giant Ox. As part of Naruto's effort to control the Nine-Tails, he has undone the seal using the key given to him by Gerotora.

According to Kushina Uzumaki, this jutsu was based on the fūinjutsu of the Uzushiogakure.

This jutsu is the opposite of Danzō's Reverse Four Symbols Sealing Technique.