Reverse Four Symbols Sealing

This technique is a fūinjutsu that the user places across their chest, and sets it to activate upon their death. The technique releases four symbols from the user's body that then form a large, black sphere around them. Anything caught inside the sphere's area is then drawn in and sealed within the user's corpse, meaning that they to will die along with the user

Trivia

 * This technique has the opposite effect of the Four Symbols Seal, a technique which allows Naruto to draw out the Nine-Tailed Demon Fox's chakra from within himself.