CaSy "Kaji" is a cloud-based housekeeping service based in Tokyo, Japan. Founded in 2014, CaSy operates in the Tokyo, Kanagawa, Chiba, Saitama, Kyoto, Osaka, Hyogo and Sendai regions serving both household and corporate clientele. CaSy believes in the integration of Omotenashi or "Hospitality" with Technology. CaSy devotes itself to upholding its key mission of providing excellent service through efficient use of information technology and a deep understanding of human nature.