Haruka Akane is a high school student who serves as a part-time worker at a local driving range. She is the one who introduces the protagonist, Minami Aoba, to the sport of golf. Haruka is characterized by her passionate and earnest personality, being a confident and outgoing individual who is determined to become a professional golfer. Her motivations stem from a deep-seated love for the game; she finds joy and satisfaction in the rare, perfect shot, which makes all the frustrations and difficulties of the sport worthwhile.

In the story, Haruka acts as a mentor and guide to the novice Minami, encouraging her to focus on the fun of the game rather than just scores and technique. Her role is to be an inspiring figure who helps others discover their own potential. Her key relationship is with Minami Aoba, whom she supports and teaches. She also shares a close friendship with Ayaka Hoshimi, forming a trio of golfers. Over the course of the narrative, her development is tied to her ambition and her ability to inspire those around her, reinforcing her belief that success in sports is not solely about winning but also about personal growth and camaraderie.

As a skilled and experienced player, Haruka's notable abilities include a high level of proficiency in golf, possessing the technical skill and insight to instruct beginners and help them improve. Her swing is particularly noted as being inspiring.