Ontsu Co., Ltd. engages in the retail of food and household goods in hundred yen shops, as well as the management of karaoke bars and sports centers. It operates through the following segments: Food and General Merchandise Retail, Karaoke, Sports, and IP Business. The Food and General Merchandise segment operates hundred yen shops and supermarkets. The Karaoke segment deals with the sale and rental of commercial karaoke equipment and arcade game consoles. The Sports segment handles the management of sports club and hot yoga studio. The IP Business segment manages coin parking business and rents out real estate properties. The company was founded in March 1981 and is headquartered in Osaka, Japan.