Utsuho no Kagami

Utsuho no Kagami (奉鏡, Utsuho no Kagami) is a technique that Zekuu can only use. Yataka uses this ability to reveal a person's true nature. It uses its mirror form to reflect a person's characteristics. Once they directly look into their true reflection, they transform into what they saw in the mirror.

Trivia
When translated from kanji, Utsuho no Kagami (奉鏡) means Mirror of the Heavens.