Yin Seal: Release

* Name:
 * Type: S-rank, Supplementary
 * User: Tsunade
 * Debut (Anime): Episode 95
 * Debut (Manga): Chapter 169

This jutsu releases the massive amounts of chakra stored inside the seal on Tsunade's forehead. She then may use this chakra for many things like for her Creation Rebirth, a powerful regeneration technique.