Eiichirou Maruo's aspiration is to embark on a professional tennis career, but convincing his parents to offer their support proves challenging. To earn their approval, he proposes a wager: should he fail to win the All-Japan Junior Tennis Tournament, he will renounce his dream. Yet, he must improve his skills rapidly, as the competition features the most elite players in the country. His coach, Ryuuhei Aoi, advises Eiichirou to seek training abroad, particularly at the esteemed Florida Tennis Academy. In the second season of Baby Steps, Eiichirou voyages to America for a two-week instructional session. This opportunity grants Eiichirou the chance to encounter tennis beyond the borders of Japan and, ultimately, brings him closer to his aspiration of becoming a professional player.