Translated as "Crimson Confuse," Koh-Waku (神魔・紅惑) is a Chinese ogre-like Shinma in Chinese armor with sword blades for hands that is responsible for eating Yui-Li's loved ones and their sorrows. He can take the form of those that he has devoured (mainly Yui-Li's lover Yang) as well as having psychic powers and the ability to create shadow clones of Yui-Li's loved ones. She has been pursuing it for a while and finally encounters him in Japan and ran afoul of Miyu and Larva.
When Yui-Li encountered it on a boat on the night of the New Moon, Koh-Waku used his Shadow Clones of Yui-Li's family on her until Miyu and Larva appeared. Koh-Waku shed his disguise after an attack from Yui-Li and Larva. With Miyu's help, Yui-Li killed Koh-Waku with a combination of her sai and Chinese Sealing Paper.
- He is probably based on the Chinese myth of the Chinese vampire Kyon-Shee.