"Ochikobore Fruit Tart" centers on a group of aspiring idols who live together in a dormitory while navigating the challenges of the entertainment industry. The story begins with Hemo Midori, a cheerful and optimistic girl who dreams of becoming a top idol. Despite her lack of experience and talent, she joins the struggling idol group Fruit Tart, which is on the verge of disbandment due to poor performance and low popularity. The group operates under the management of a small, underfunded agency, adding to their struggles.

The other members of Fruit Tart include Roko Sekino, a former child actress with a sharp tongue and a cynical attitude; Nina Maehara, a shy and reserved girl who struggles with self-confidence; and Ino Sakura, a mature and composed member who often acts as the voice of reason. Each character brings a distinct personality and set of challenges to the group, creating a dynamic interplay of humor and drama as they work to improve their skills and gain recognition.

The narrative explores their daily lives, both on and off stage, as they face setbacks, rivalries, and personal growth. The group encounters various obstacles, such as competing with more successful idol groups, dealing with financial difficulties, and overcoming their own insecurities. Despite their flaws and lack of initial success, the members of Fruit Tart gradually develop stronger bonds and a shared determination to succeed.

The series balances comedic moments with heartfelt scenes, highlighting the struggles and triumphs of underdogs in a competitive industry. Through their journey, the characters learn to support one another, embrace their individuality, and strive toward their dreams, even in the face of adversity. The story emphasizes themes of perseverance, friendship, and the pursuit of passion, making it a relatable and engaging tale for readers.