Three Imperial Regalia of Japan is the National Treasure of Kyoichi Kusanagi.[1] So far, only two have been shown, the Kusanagi Sword and Yata's Mirror.


Yata's Mirror

Yata's Mirror takes the form of a massive circular, translucent shield.

Kusanagi Sword

Takes the appearance of a long sword extended from within Kyoichi's hand with ribbons of blood surrounding it. When fully equipped, the sword changes form into seven branched-sword


Yata's Mirror

Shielding: Yata's Mirror provides nearly absolute protection from direct attacks. However, with extremely powerful attacks such as Dante's Energy Wave, it can be broken.

Kusanagi Sword

It acts as a measure of control against Yamatano Orochi that has been sealed inside the firstborn son of Kusanagi clan.[2] It is considered a god-slaying weapon.

Summoning: When slashing something, the sword can summon Yamatano Orochi out of the slash. This is the result of Kyoichi Kusanagi having Yamatano Orochi sealed inside his body.


  • Kusanagi's form as it's fully equipped might be inspired by Shichishitō (七支刀, Seven-Branched Sword), a sword of korean origin gifted to a ruler of japan in Yamato Period.
  • When fully equipped, the webtoon refers to Kusanagi by its original name, Ame-no-Murakumo-no-Tsurugi (天叢雲剣, Heavenly Sword of Gathering Clouds).
  • The final regalia of the three, unrevealed, is the jewel, Yasakani no Magatama which represents benevolence.
    • The sword represents valour and the mirror represents wisdom.



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