This work is an ensemble drama in which three cleaners who specialize in erasing the dirt of the past, and a reporter who exposes the mistakes of the past. In Kinshicho, Sumida Ward, Tokyo, at the house cleaning shop "Seiriseiton," three childhood friends work together: Kaku Kento portrays the president Kinomoto, Emoto Tokio as the wheelchair bound Yu-chan, and their junior colleague (Ochiai Motoki). They clean places with complicated backgrounds, such as the company ruined by a young enterpeuner who was seen as "The Emperor's New Clothes;" the home of a couple who lost their daughter to bullying ten years ago, and the Filipino pub where a childhood friend worked. Meanwhile, an investigative reporter was posting QR codes around town that, when scanned, would reveal the truth about unsolved cases and scandals.—Drama-Otaku

There is a housecleaning office in Kinshicho, Tokyo. Daisuke (Kento Kaku) is an owner and he works with 2 employees: Yu-chan (Tokio Emoto) and Ippei (Motoki Ochiai). They are childhood friends. They provide cleaning service to various clients with their own stories. Recently, some strange events have been happening at Kinshicho. A QR code has been posted on the corner of a street. If somebody scans this QR code, this leads to the truth of unsolved cases from the past and the truth behind these deplorable events. The person who has made this is journalist Aoi (Masaki Okada). By chance, many of Daisuke's clients are either perpetrators or victims of the cases that Aoi has uncovered. Daisuke, Yu-chan and Ippei unintentionally get involved in these cases.—AsianWiki