In 2016, Hiroshima celebrated its 70th year in the city of A - bomb, and in keeping with it, held a large - scale tea ceremony using the whole Hiroshima peace memorial park. This tea ceremony was selected as one of the 70th anniversary commemoration project of the atomic bomb sponsored by Hiroshima City, and was held as an official event of the city. Mayor Hiroshima, Director of Mazda Co., Ltd., and architect, Kengo Kuma, entered the stage. In holding, I took all command as a general director, hospitable 200 guests gathered on that day and paid great success.