Otsuki Noh Theater, located near Osaka Castle, has been around since before the war. It was established in 1935 as a unique Noh theater that replaced the common seating at the time with chairs. It is one of the few Noh theaters in the Kansai region that escaped the ravages of war, and has continued to perform Noh performances even after the war. Features include using a full-size copy of Osaka Castle's largest stone wall as the background for the bridge, and setting the reverberation time to about 1 second, taking into consideration the musical characteristics of Nohgaku. 502 regular seats. In 2007, as part of the 70th Anniversary Commemoration project, various plans and innovations were held throughout the year, including parent-child viewing classes, public participation performances, and postponed start times for regular performances, as well as commentary corners and demonstrations. We also offer trial classes. Nohgaku is an ancient Japanese traditional performing art that was developed during the Muromachi period and is said to be the world's oldest existing performing art, and has been declared a UNESCO World Intangible Heritage.At Otsuki Noh Theater, new Noh plays as well as classics are performed. He is spreading the appeal of Noh to future generations.