Maruo Eiichirou (Ei-Chan), a first year honor student, one day decides he's unhappy with the way things are and lacks exercise. His mother gives him a flyer for the local Tennis Club and he decides to check it out. He's instantly captivated by it. With no prior experience and poor physical conditioning, join Ei-Chan as he embarks on a tennis journey using his smarts, dedication and work ethic.

Note: Won the 38th Kodansha Manga Award in the Best Shōnen Manga category in 2014.