Four Black Fogs Formation


 * Name:
 * Type: B-rank, Supplementary
 * Users: Sound Four
 * Debut (Anime): Naruto Episode 111
 * Debut (Manga): Chapter 184

A barrier ninjutsu technique performed by all of the Sound Four, used during the temporary "death" of those advancing their cursed seal to its second level. The seal confines them in a coffin while the process takes place, and does not even allow the Byakugan to see inside. The seal seems to be naturally lifted once level two had been attained.