《Baby Steps》第 1 季于 2014 年 04 月 06 日首播。

Eiichiro (15 years old), a high school student who was only interested in studying, wakes up to the depths of tennis at a tennis school he participated to resolve lack of exercise. Eiichiro, who was a complete amateur, made up for the physical disadvantages with his own observation and analysis skills and thorough wearing ball control. At the beginning, junior tennis players who weren't dealing with Eiichiro were inspired by his dedicated attitude and gradually changed their consciousness. A realistic sports anime that is a brain-smart character who aims to become a professional with a data-based strategy.

《Baby Steps》第 2 季于 2015 年 04 月 05 日首播。

The stage of the second series is the Florida Tennis Academy. There, rivals aiming for the top of the world competed every day to raise the world rank even one. How will Eiichiro overcome the world barrier by studying abroad for the first time in his life ... A hot and realistic story of the boys, depicting the behind-the-scenes behind-the-scenes tennis scene in an easy-to-understand manner.