A mysterious member of the Genei Ryoudan, Feitan is attired in what one would expect from a bandit—dark clothes with a skullhead scarf that covers his mouth. Feitan seldom speaks, but when he does, usually there's a word missing. Feitan's first language most likely isn't Japanese, but he has shown to be rather proficient in the Chinese language. He is one of the original members hailing from Ryūseigai. After Feitan's victory over Zazan in Ryūseigai, he has been granted temporary control over the Genei Ryoudan. Feitan is an assassin down to his core, and is quite skilled at his profession. His movement is incredibly fast; Feitan is able to leave afterimages of his body due to his rapid steps. He wields an umbrella that conceals both a sword and a gun that fires needles inside for hidden attacks.

Noi is apparently a cousin of En's. Her smoke heals almost any injury short of actual death. The closest person to Noi is Shin, as demonstrated in her revival from reptile form. She is taller and stockier than Shin, and it surprises Fujita that she's female the first time he sees her without her mask. Noi's hair is pale blonde and her eyes appear to be red, suggesting she might be an albino. Her hair is mid length, and she has several piercings on her ears. Noi's mask is very detailed, although dark blue and apparently vinyl-like. It is somewhat similar to the one on Shin's, although more form fitted with a zipper.