KeyHolder, Inc. engages in the operation, planning, development, and construction of amusement and commercial facilities. It operates through the following segments: General Entertainment Business, Real Estate Business, Commercial Facility Construction, Elderly Care, and Others. The General Entertainment Business segment handles the operation of amusement facilities such as game arcades (including medal-games and crane-games), karaoke, collaboration-cafe, amusement-casino, and darts bars. The Real Estate Business segment provides the purchase and sales, brokerage, leasing, subleasing, consignment, and management of real estate properties. The Commercial Facility Construction segment designs and constructs Pachinko parlors, karaoke shops, and stores. The Elderly Care segment handles the elderly day care management under the brand 'Sawa Honpo'. The Others segment engages in the business of merger and acquisition-related proceedings, mediation, services, and consulting. The company was founded by Katsunori Manabe on February 11, 1964 and is headquartered in Tokyo, Japan.