"Behind the Scenes!!" is a manga series that centers on the world of film production, specifically the behind-the-scenes efforts of the Art Squad, a group of students at a prestigious art university. The protagonist, Ranmaru Kurisu, is a shy and socially awkward young man who stumbles into the Art Squad after a chance encounter with its eccentric members. The Art Squad specializes in creating props, sets, and special effects for student films, often going to extreme lengths to bring directors' visions to life. Ranmaru, despite his initial reluctance, finds himself drawn into their chaotic yet creative world, where he begins to discover his own talents and purpose.

The narrative explores the dynamics of the Art Squad, led by the charismatic and resourceful Ryuji Goda, who is known for his ability to solve any problem with ingenuity and flair. Other key members include the meticulous and perfectionist prop master, Ruka Suwa, and the cheerful and energetic makeup artist, Momo Kawasaki. Each member brings unique skills and quirks to the group, creating a vibrant and diverse team. The series delves into their collaborative efforts to overcome challenges, meet tight deadlines, and deliver high-quality work, often under pressure.

As Ranmaru becomes more involved with the Art Squad, he begins to confront his own insecurities and past traumas, particularly his fear of failure and rejection. Through his interactions with the group, he learns the value of teamwork, creativity, and perseverance. The series also highlights the broader filmmaking process, showcasing the interplay between directors, actors, and the Art Squad, and emphasizing the importance of every role in bringing a story to life.

The manga balances humor, drama, and slice-of-life elements, offering a detailed and engaging look at the often-overlooked aspects of film production. It portrays the passion and dedication of the Art Squad members, as well as the challenges they face in their craft. The story progresses through various film projects, each presenting new obstacles and opportunities for growth, both for the characters and their work. Through its focus on creativity and collaboration, "Behind the Scenes!!" provides an insightful and entertaining exploration of the art of filmmaking.