Miyuki: The membership consisted of Miyuki, a transsexual demoness with blue hair, grey skin, a single horn protruding from the center of her forehead and clothed in a Chinese qipao. She appeared to have a gender-based inferiority complex. She was defeated by Yusuke in unarmed martial combat. She wielded a rope made of her own hair.
Inmaki: was a super-fast demon whose face was covered by a hood connected to an invisibility cloak and wore iron claws on his hands as his weapons. He was defeated by Yusuke's Shotgun.
Gokumonki: was a giant ogre demon who wore a grass skirt and wielded a giant, iron-spiked club. He kidnapped Botan and attempted to use her as a hostage in his failed attempt to defeat Yusuke, Botan, and Kuwabara. He was foiled when both Yusuke and Kuwabara laid him out with a kick enhanced with Spirit Energy after Botan slipped out of her jacket to escape. In the manga however, since Botan was not present the only part of the fight seen was Gokumonki getting knocked out by Yusuke and Kuwabara's kick.
They were spared by Yusuke and Kuwabara, and they reappear in a flashback to recruit Genkai for the Dark Tournament in the manga. In the anime version of the flashback, the three emissaries are all hooded, but they are similar in design, so it is likely it is them.