Based on the available information, no character named "John" or "Junior" appears in the Cutie Honey franchise. However, this name may refer to the character Junpei Hayami, who is a member of the Hayami family that aids the protagonist.

Junpei Hayami is the younger brother of the journalist Seiji Hayami and the son of the eccentric retired ninja Danbei Hayami. He is often portrayed as a young boy who is part of the family that supports Honey Kisaragi in her battle against the criminal organization Panther Claw. His role in the story is that of a supporting character, and he often finds himself caught up in the adventures and dangers alongside his brother and father. One of his defining traits is his strong attraction to Honey, which is played for comedic effect, though he is also shown to see her as a mother or sister figure at times. He is a minor character who provides both assistance and comic relief to the narrative. No notable abilities or significant character development are associated with him in the standard sources.