Love is magic. Miss Magician with a male phobia
Kaori receives a strange job request from a female magician who requests that her protector be a woman herself. Ryo sees that this is due to her having a phobia of men in general. As a result, Ryo resorts to cross dressing as Kaori's older sister in order to protect her from a rival magician seeking to push her out of business.
Aired 23/06/1989EP 60 - Love is magic. Miss Magician with a male phobia
1988
City Hunter 2
Ryo Saeba is a "sweeper" know as the City Hunter. He and his sidekick Kaori Makimura are hired to solve problems that the police can't (or won't) handle. When he's not keeping the streets of Tokyo clean, Ryo is chasing the ladies, and Kaori chases after him with a giant anti-ecchi hammer.
(Source: Anime News Network)