Sakashinamachi Clinic is an internal medicine clinic located in Sakashinamachi, Setagaya Ward, Tokyo, operated by the medical corporation Shomi-kai. Established as a private practice in 1990 and reorganized as a medical corporation in 1994, this historic medical facility celebrated its 30th anniversary in 2020. In addition to outpatient care, the clinic provides community-based healthcare including home medical care and visiting nursing services, and has been implementing lymphocyte therapy for terminal cancer patients since 2002. The facility offers an environment focused on user convenience, including English-speaking support, acceptance of credit cards, debit cards, and electronic payments, and barrier-free accessibility. Guided by the principles of "unrelenting challenge toward the future" and "social responsibility through healthcare," the clinic delivers medical care while leaving room for a third principle to evolve. Closed on Sundays and holidays, as well as year-end and New Year holidays and the Obon period from August 13th to 15th.