An era of diversity. Japan, where the Nudist Law passed and walking the streets stark naked became fully permissible. Even in the straight-laced Metropolitan Police Department, there was a detective who proudly stripped off his clothes, famously known as "Naked Detective Charlie." Proclaiming that "clothing is mere ostentation," he tackles tough cases using the truth residing in his crotch as his compass. What lies ahead for his buddy-cop investigation with black-suited officer Nanao?! An absurdly silly police drama that lightens your heart through a raw, skin-to-skin feel!!