ACCA: 13-Territory Inspection Dept. is a Japanese manga. It has been adapted as anime series and a stage musical.
A 2.5 dimensional musical, also known as an anime musical, is a type of modern Japanese theater production based exclusively on popular Japanese anime, manga, or video games. The term “2.5D musical” was coined to describe stories presented in two-dimensional medium being brought to real life. 2.5D musicals actors wear make-ups and costumes that accurately depict the actors as the original anime characters, along with exaggerated acting that mimics the original expressions in the original anime. With the evolution of technology, some of the modern 2.5D musicals uses projection mapping, and special effects and stunts of actors attracted lot of fans mostly young women in their teens and 20s.
Musical ACCA Official Site
Japan 2.5-Dimensional Musical Association