Zanseiken

 is a sword wielded by the Inu-hanyō Towa Higurashi. She will acquire the sword in The Second Act of Hanyō no Yashahime.

Physical Description
The Zanseiken has a golden guard in a style similar to that of Kirinmaru's armor with a deep blue jewel embedded in it.

History
TBA

Powers & Abilities

 * Enhanced Slashing: As it is empowered by Towa's demonic energy, its ability to slice through solid objects is more effective.
 * From the tip of her energy blade, Towa can unleash a powerful demonic energy wave in the form of a colossal blue-white dragon, just like her father had originally with Tōkijin, now with Tenseiga.
 * A variant of the technique used by Towa, Kirinmaru was the one whom gave it the name.

Trivia

 * The Zanseiken was teased at the end of Sesshōmaru's Daughter.

Appearances
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Season 1

 * Sesshōmaru's Daughter

Season 2: The Second Act

 * TBA (first appearance and use)