On Wednesday, the Tokyo Metropolitan Government passed a law recognizing same-sex relationships, but not as legitimate marriages.
Tokyo is the ninth of Japan's 47 prefectures to make the change.
Starting in November, same-sex couples that register their partnership will gain certain rights previously denied to them.
Rights include living in public housing together and visiting a partner in the hospital.
Registration of partnership can be done anonymously online without visiting an office, as well as registration of their children.
Japan is the only country in G7 not to recognize same-sex marriages.
