|Rōmaji||Kesshō no Yoroi|
|English TV||Crystal Armour|
|Appears in||Anime, Manga|
|Classification||Kekkei Genkai, Ninjutsu, Chakra Flow|
This technique allows Guren to cover her skin with a thin sheet of crystal, protecting herself from blunt attacks. This armour can also aid Guren to perform stronger physical attacks. The crystal is transparent and can only be noticed by light reflecting off it.