"Super Gals" centers on Ran Kotobuki, a spirited and confident high school girl who embodies the essence of a "gal" (gyaru) in Tokyo's Shibuya district. Ran is the self-proclaimed "World's Greatest Gal," known for her bold personality, flashy fashion sense, and unwavering loyalty to her friends. Despite her carefree and rebellious demeanor, Ran has a strong sense of justice and often intervenes to help others, even if it means breaking the rules. Her adventures are deeply rooted in the vibrant and fast-paced culture of Shibuya, where she navigates school life, friendships, and family dynamics.

Ran's best friends, Miyu and Aya, play significant roles in the series. Miyu is a shy and reserved girl who contrasts sharply with Ran's outgoing nature but shares a deep bond with her. Aya, on the other hand, is a former delinquent who has reformed and now works as a police officer, often finding herself caught between her duty and her loyalty to Ran. Together, the trio faces various challenges, from dealing with rival gals and school drama to tackling more serious issues like family conflicts and societal expectations.

The series explores Ran's relationships with her family, particularly her younger brother, Yamato, who is a straight-laced honor student often embarrassed by Ran's antics. Their dynamic highlights the contrast between Ran's rebellious lifestyle and Yamato's conventional approach to life. Additionally, Ran's interactions with her parents, especially her mother, who is a former gal herself, add depth to her character and provide insight into her motivations and values.

Throughout the series, Ran's adventures are episodic, blending comedy, drama, and slice-of-life elements. Each episode often revolves around Ran helping someone in need, whether it's a friend, a stranger, or even a rival. Her actions frequently lead to humorous misunderstandings or chaotic situations, but they also underscore her genuine desire to make a positive impact on those around her. The narrative also delves into the lives of secondary characters, offering a broader perspective on the challenges faced by teenagers in Shibuya.

"Super Gals" balances lighthearted moments with more serious themes, such as the pressures of conformity, the importance of individuality, and the complexities of relationships. Ran's journey is not just about her personal growth but also about her influence on the people she encounters, inspiring them to embrace their true selves. The series captures the essence of youth culture in Shibuya, blending humor, heart, and a touch of rebellion to create a memorable and engaging story.