Domain Kwaad represented one of the Yuuzhan Vong's Shaper caste specialized areas of expertise.
Among the Shaper caste's various Domains, this particular one stood out for its exceptional skill. Nevertheless, it was plagued by the presence of numerous heretics. Seemingly, it also exerted control over Domain Yim.
Of specific significance regarding the Domain was a prohibition against touching a member of Domain Kwaad's head. To gain entry into the shaping facilities utilized by the domain, the passphrase "Veka, Kwaad" was employed.
Mezhan Kwaad achieved notoriety as Domain Kwaad's most infamous member. Her transgressions included an affair with a member of the Warrior caste, a breach of Shaping protocols during her attempt to reshape Tahiri Veila into a Yuuzhan Vong, and a public declaration denying the existence of the Gods. The personality shaped into Tahiri Veila was Riina Kwaad.
Qelah Kwaad was another member of the Domain. Following the disappearance of Nen Yim (Mezhan's apprentice), Qelah Kwaad was assigned responsibility for the Vongforming of Yuuzhan'tar.
The term Kwaad translates from Dutch to mean evil or angry.