Rissho Kosei-kai is a Buddhist organization composed of ordinary men and women who have faith in the Buddha and strive to enrich their spirituality by applying his teachings in their daily lives. At both the local community and international levels, they are very active in promoting peace and well-being through altruistic activities and cooperation with other organizations. With headquarters in Tokyo, Rissho Kosei-kai now has some 2.05 million member households in 245 churches throughout Japan as well as in other countries.

The organization was founded by the late Nikkyo Niwano and Myoko Naganuma in 1938, guided by the teachings of the Lotus Sutra in which the innermost spirit of Shakyamuni Buddha is incorporated. In 1991, Rev. Nichiko Niwano succeeded his father as president. Under his continuing leadership, members have been active in sharing the Buddha's compassion in their communities, their places of work, and also at the international level.