Kihara Noukan

Kihara Noukan is a character introduced in Shinyaku Toaru Majutsu no Index. He is a member of the Kihara Family, first referred to by Kihara Yuiitsu in Shinyaku Toaru Majutsu no Index volume 4, and is a golden retriever  with arithmetic circuits externally attached. Despite being a dog, he is capable of human speech, and has a man's voice. Also, he is said to be the most influential Kihara in many different fields.