Misshitsude

Misshitsude (密室で, "behind closed doors") is a special seal developed by Kirikō. It is composed of a large, 12 pronged star-shaped seal. Inscribed on her back, each star works like a key holder. By activating the seal, one of the points will flame up, causing the seal to open. With each point opened, more of Kirikō's stored reiatsu amounts is released. By compressing her reiatsu, it allows her to keep her presence hidden and slowly become powerful as combat progresses. The downside to using the Misshitsude seal, is that the longer one seals their reiatsu off, the more unstable there reiatsu becomes. If one were also to release all of the seals in one go, the result would be devastating.

Trivia

 * The idea is based of of the Eight Trigrams Sealing Style, from the manga Naruto.