The character that Anna is based on also stars in a one-shot comic called Itako no Anna, which focuses mainly on her character and appears in Takei's other short work, "Butsu Zone", as an ally to the main characters. Though the character is an itako in both works and possesses a similar appearance and background, the Anna Kyoyama who appears in "Itako no Anna" and "Butsu Zone" has a cheerful and enthusiastic personality compared to the aggressive and intimidating Anna in "Shaman King". She wields the sword "Harusame" (which would reappear in "Shaman King" as a primary medium for Amidamaru) and expresses an interest in travelling to find her birth parents. It is suggested that Anna I, an itako who trained under the Asakura family and moved to Los Angeles, is likely the Anna who appeared in "Butsu Zone". She is mentioned as having succeeded in the business and regularly sent information obtained on the Patch Tribe to the Asakuras, which aided Anna Kyoyama and her companions in locating the Patch Village. Anna I is responsible for training Anna III, the daughter of Patch Officiant Silva, who also has a strong resemblance to the prototype for Anna.