[Machine Translation] D - COY" is a cafe full of good-looking staff. Its secret face is that it is an investigation organization specializing in undercover operations. Nanao Nogoshiro, a member of the high school team, sneaks deeply and quietly into the school with her hidden power... The popular comic "10-4" by Mami Hashiba, the author of "Tokyo Ghost Trip" which has also been made into a TV drama, has been adapted into a drama CD! The story of a boy's life in the world begins on Drama CD.