403 years ago today, on January 24, 1622 (December 13, 1621 lunar calendar), Oda Changyi passed away during the Warring States Period in Japan. Oda Changyi (1547-January 24, 1622) was the younger brother of Oda Nobunaga and a famous tea maker from the Antu Momoyama period to the early Edo period. He was the youngest son of Oda Shinsoo, whose young name was Genwu (or Gengoro), and his name was Rakusai Ruan. Later generations called him Oda Youle and Oda Yourazai. At first he worked under Oda Nobunaga Shintaka, and escaped from Kyoto when the Instinct Temple changed. After the change of the Instinct Temple, Shibukata Nobuo, who took Odo Kokuni Chita-gun as his territory, later gave up his territory and shaved his hair. Shibukata Toyotomi Hideyoshi, who led Tsukokuni's tongue 2,000 stones. During the Battle of Sekigahara, he belonged to the Eastern Army, and he had won 30,000 stones from Yamato. (At this time, he set up Ruan in the main prefecture of Kenin-ji Temple in Kyoto, and created a tea ceremony with music flow.) Afterwards, he went to Osaka Castle to become an official and help his niece - Yodo Temple. Osaka was still in Osaka Castle during the Winter Formation, but was suspected of being a spy of the Edo Shogunate. On suspicion of collusion with the enemy, he left the city before the Osaka Summer Formation and lived in sec He once learned the tea ceremony from Senrikyu, and was known as one of the seven sages of Rikyu. He revived the Zhenshanyuan of Kenin-ji Temple in Kyoto and built a tea room such as a temple (a national treasure). Now there is a Yurakucho in Chiyoda District, Tokyo, which is named after the place where Yurakucho lived, and the remains of the house where he lived still exist. There is also a Yurakucho in the place where Yurakucho lived in Osaka City (according to ancient maps, the location should be near the World Tea House in Nisei Ward, Osaka City (near the World Tea House Station of Nanami Electric Railway and Osaka Municipal Subway), but it no longer exists due to many rezoning after the war.