|Please note that this is the Detective Conan Wiki's article on manga/anime. If you are looking for the article on Gosho Aoyama's assistant then you should head to Eiichi Yamagishi.|
|(山岸栄一, Yamagishi Eiichi)|
|Occupation||Yoko Okino's Manager|
|Anime||Detective Conan Episode #3|
|Appears in||Anime and Manga|
Eiichi Yamagishi (山岸栄一, Yamagishi Eiichi) is Yoko Okino's manager. He first appeared in the suicide murder case of Yoko's ex-boyfriend. He was one of the suspect of the case after his weird behavior and a huge suspect towards Kogoro. He told Fujie to break up with Yoko because of Yoko's music career.