At first glance, Narumi Fujishima may appear to be an ordinary high school student, but in truth, he is a pessimistic outsider. Because of his father's job, he was forced to change schools constantly, meaning he never managed to fit into society. When his cheerful classmate Ayaka Shinozaki compels him to join the gardening club, Narumi meets Alice, a genius hacker who lives in isolation above Hanamaru, the ramen shop where Ayaka works part-time. He subsequently discovers that Alice operates a special private detective agency, and that all her professional associates identify themselves as "NEET"s: Not in Education, Employment, or Training. Narumi joins the NEET detective agency because of his personal connection to a criminal case. He finds himself drawn into a world of dangerous investigations carried out by this mismatched group of detectives, all while attempting to track down a crime syndicate that appears to have mysterious links to Alice.