If I had to guess the show's title comes from the romance aspect of the show then the progression of the main character's tennis skills is rather quick (there are hints of asperger's which can be an explanation). While I found most of it not to be very engaging due to the wrap around being a cliché and kid friendly romance there have been some intense tennis matches to enjoy. A second season has been greenlit and is coming next year. If you're into tennis it's well worth checking out.

Well Directed. Follows the manga very well. It is a good thing that there is no super powers involved but real tennis skills. It give good information about the game and you get involved emotionally with the battles.