A former ward assembly member of Tokyo's Chiyoda Ward was arrested for allegedly accepting bribes from a contractor in return for leaking bidding information for construction ordered by the ward. The chairman of an organization formed by the bribery contractors agreed to the ex-member's demands.

Interviews with people involved in the investigation revealed that the company appears to have been coordinating the companies providing benefits according to the situation. It appears that the provision of benefits from the business has been going on since at least seven years ago, in 2017.