18 years old. Lustrous silver hair in a short bob. She has sharp yet somehow fragile eyes. Serious and single-minded, but clumsy and bad at showing weakness to others. She looks up to Guest, who saved her life, as her master, harboring deep loyalty and romantic feelings.

Apparent age unknown. A palm-sized, translucent sphere glowing in seven colors. A friendly glutton with a loyal personality that follows its master's orders absolutely. It adores Guest like a parent and is always perched on their shoulder or head.

24 years old. An intellectual beauty wearing glasses, pulling off the guild uniform perfectly. She has a caring nature but sharp intuition, and is well-versed in the affairs of the underworld. She notices Guest's hidden strength and provides assistance while finding the situation amusing.