"Assemble Insert" is a 1989 anime series that blends elements of action, comedy, and science fiction. The story centers around a group of five high school girls who are recruited by a secret government organization to combat crime and terrorism. Each girl possesses unique skills and talents, making them an effective team. The organization, known as the "Assemble Insert Project," equips the girls with advanced technology and gadgets to aid them in their missions.

The protagonist, Mai, is a cheerful and determined leader who excels in martial arts. Her teammates include Yuki, a tech-savvy genius; Ran, a skilled marksman; Ayumi, a master of disguise and infiltration; and Miki, a strong and athletic fighter. Together, they form a cohesive unit, balancing their individual strengths to tackle various challenges.

The narrative unfolds as the girls take on missions that range from thwarting terrorist plots to rescuing hostages. Each episode typically features a self-contained story, with the team facing a new adversary or situation. The missions often require strategic planning, teamwork, and the use of their specialized gadgets. Despite the serious nature of their work, the series incorporates lighthearted moments and humor, particularly through the interactions between the characters.

As the series progresses, the girls' camaraderie deepens, and they develop a strong sense of duty and responsibility. The show also explores themes of friendship, perseverance, and the importance of working together to achieve common goals. While the primary focus is on action and adventure, the characters' personal growth and relationships add depth to the storyline.

"Assemble Insert" is characterized by its episodic structure, with each mission contributing to the overall development of the characters and their roles within the Assemble Insert Project. The series maintains a balance between action-packed sequences and moments of character-driven storytelling, creating an engaging and dynamic narrative.