The Karate instructor, also called "Sensei" (先生), talks with a comical Japanese accent and says things like "You rack disciprine", instead of "you lack discipline". He has all the students say "ichi, ni, san, shi (いち、に、さん、し)", literally "one, two, three, four", while practicing punches and kicks.
The studio is located in a row of other businesses. With a large open interior and large front windows.
- "Ichiban"（一番、いちばん）means "number one", "first", or "best" in Japanese. Therefore, the name roughly translates to "Number One Karate".
- Ichiban is also the name of a real Karate dojo in Rhode Island.
- In the back of the dojo, there is a gold plate on the wall that reads "Isamu" (勇) which means "Brave".
- A sign on the walls in front and back has the text "一 努力" which may have been taken from one of the rules of the dojo-kun commonly found in karate dojos. The specific rule reads as "一、努力の精神を養うこと" (hitotsu, doryoku no seishin wo yashinau koto) or "One, to foster the spirit of effort".