"Pro Golfer Saru" centers around Saru, a young boy with an extraordinary talent for golf, despite his lack of formal training. Saru grows up in a rural village, where he develops his skills by hitting rocks with a makeshift club. His natural ability catches the attention of professional golfer Masashi "Jumbo" Ozaki, who recognizes Saru's potential and decides to mentor him. Saru's journey begins as he transitions from his humble beginnings to the competitive world of professional golf.

The series explores Saru's growth as a golfer and as an individual, highlighting his encounters with various rivals and mentors who shape his career. Saru's unorthodox techniques and carefree attitude often clash with the disciplined and traditional approaches of other players, creating both comedic and dramatic moments. Key characters include Jumbo, who serves as a father figure and coach, and Saru's rivals, such as the skilled and disciplined golfer Ryoma, who challenges Saru to refine his game.

As Saru progresses, he faces numerous challenges, including intense tournaments, personal setbacks, and the pressure to prove himself in a highly competitive sport. The narrative emphasizes themes of perseverance, self-discovery, and the importance of balancing natural talent with hard work. Saru's journey is marked by his determination to overcome obstacles and his unwavering passion for golf, which drives him to achieve greatness despite his unconventional methods.

The series blends sports action with character-driven storytelling, offering a mix of lighthearted humor and emotional depth. Through its focus on Saru's development and the dynamics of the golfing world, "Pro Golfer Saru" provides an engaging exploration of ambition, mentorship, and the pursuit of excellence in sports.