In 901, Sugawara Michizane rested himself around here, on the way to visit his aunt, when he was relegated to Dazaifu in Kyushu. He was so delighted with the Okoshi ( Japanise cake) which the villagers had sympathetically presented him with that in return, he gave them " Umebachi " (crested Bawl by Ume made by the Sugawara family ) as a token of his gratitude.

Tradition says that this crested bowl (a family crest )with Ume (Apricot tree) become a trademark of Awa-Okoshi; a popular cake cake with millet seeds in Osaka. In 942, 40 years after the death of Michizane, to worship his sprit as a Scholar, this temple was established as Yasui Shrine in relation with the fact that he had taken a rest here.

In the grounds of this Shrine, stands a Tomb Stone for Sanada Yukimura who fell in battle; and is famous among Osaka citizens, because of his heroic death. In 1615, in the Osaka Summer Battle to capture the Osaka Castle, Sanada Yukimura ( a military commander ) led 3,500 soldiers, into the main camp held by Tokugawa Ieyasu ( Shogun open the Edo gov. ) Mt. Chausu Yama. At the end of a fierce battle against 100,000 soldiers led by Ieyasu, Sanada was injured, and he was abruptly killed by a lance, during his rest at this shrine.