Based on available documentation, the character "Tatara Ken" is listed solely within the English dub cast credits for *Mai Mai Miracle*. This credit provides no details regarding background story, narrative role, character development, or thematic involvement within the film. Plot summaries, character analyses, and production materials exclusively document main and supporting characters such as Shinko Aoki, Kiiko Shimazu, Tatsuyoshi Suzuki, and Kotaro Aoki. Official synopses and critical reviews do not reference the character "Tatara Ken".