What is Love? - Ryo's Course in Proper Romance
When a father requests the services of City Hunter to protect his daughter from someone stalking her at work, he finds out that the stalker IS City Hunter. The father then requests that City Hunter convince her daughter to quit her job as he feels that she may be in danger of other stalkers. Ryo realizes that the young woman has lived a sheltered life and decides to teach her a few lessons in love.
Aired 28/09/1987EP 26 - What is Love? - Ryo's Course in Proper Romance

City Hunter
Ryo Saeba works the streets of Tokyo as the City Hunter. He's a "sweeper" and with his sidekick Kaori Makimura, he keeps the city clean. People hire the City Hunter to solve their dangerous problems, which he does with a Colt Python. When Ryo's not working on a case, he's working on getting the ladies, and Kaori must keep him in check with her trusty 10 kg hammer.
(Source: Anime News Network)