Raimeiki

Raimeiki「雷鳴鬼 lit. Thunder Demon」is a high-ranked, possession-type demon of the Black Demon Series. She formed a contract with Kureto Hīragi and became his Cursed Gear.

Appearance
Raimeiki manifests as lightning surrounding the blade. In chapter 58, her true form is revealed to be of a young woman with long, slightly messy light hair, sharp slanted eyes, a single black horn protruding from her forehead, pointed ears, and fangs. She wears a black wide headband behind her horn with some strands of her hair hanging above her face like bangs.

Personality
Unknown

History
Unknown

Post-Shinjuku Arc
During Kureto's interrogation on Yūichirō Hyakuya, Raimeiki is wielded to attack the latter and quickly overwhelms him.

Osaka Arc
Shigama Dōji greets Raimeiki as a long time friend when Kureto uses the blade to stab the six-winged demon. Kureto meets with Raimeiki in his mind

Forms and Abilities

 * Demon's Thrall: Can enter her host's dreams and memories to create nightmares to break the host's will in order to take over his body. This ability can only be used against its host.
 * Basic Form: Takes the form of a black katana with a glowing green streak down the middle.
 * Electricity: Raimeiki is able to enshroud her host with streaks of energy as both a defensive and offensive mechanism. Raimeiki is also able to use electricity to stimulate the muscles and increase speed; however this would tear the muscle fibers apart.