Let Bions Be Bygones is a game that will tell the story of a detective who has long retired. John Cooper decided to end his career by taking one last case. It will open up inside. This is, at its core, a noir thriller in which you need to search for a girl who disappeared on the third planet Terrahive. This is the name of the city of the future, which is completely destroyed by crime. While conducting the investigation, John will have to communicate with a large number of different people, trying to hide the difference between himself and them.