Stories of the Japanese 01321 [Muromachi/Yoshimochi Period] The Legend of Oguri Hangan: The Murder of Hangan

Oguri Mitsushige and his son Sukeshige (1413–1481) were apparently extremely popular locally, and after their deaths, the "Legend of Oguri Hangan" was formed and spread. It is a story where historical facts and fiction are cleverly intertwined, and I would like to take this opportunity to introduce it.
The lord of Oguri Castle, the father and son Mitsushige and Sukeshige, were suspected of rebellion due to slander, and their castle was captured by the Kamakura Kubo. Mitsushige committed suicide, but thanks to the efforts of those known as the "Ten Brave Warriors of Oguri," Sukeshige narrowly escaped the castle. This Sukeshige is the protagonist of this story, known as "Oguri Hangan." (There is also a theory that his father, Mitsushige, is the Oguri Hangan.)
Hangan was traveling down the Tokaido with his ten retainers, but night fell when they reached Fujisawa (Fujisawa City, Kanagawa Prefecture). A man calling himself Taro Yokoyama offered to provide them with lodging, but Yokoyama was actually a bandit who killed travelers to steal their money and goods.
Yokoyama invited Hangan and his party to his residence and attempted to kill Hangan using a wild horse that would bite people to death, but Hangan, a master of horsemanship, easily tamed the horse. Next, Yokoyama devised a plan to kill the entire group by poisoning their sake.
At this time, there was a courtesan named Princess Terute at the Yokoyama residence. Princess Terute was originally from a noble family, but after her parents died, she was deceived by a man and sold as a courtesan in the eastern provinces. Incidentally, her name varies, such as "Terute" or "Teruten," and according to another theory, she was the niece of Yoshiazu Satake.
Princess Terute took one look at Hangan and had an intuition:
"I must not let them kill this man."
Wanting to save Hangan somehow, she intentionally spilled the sake on her knee and, while wiping it up, whispered to Hangan, "This sake is poisoned." Hangan, realizing Yokoyama's true nature, refused the sake, but Yokoyama forced the poison on them, killed all eleven of them, and dumped their bodies at Uwanogahara (Totsuka Ward, Yokohama City).
That day, a monk named Taiku from Yugyo-ji Temple (Fujisawa City, Kanagawa Prefecture) met someone in his dream who claimed to be a messenger from King Enma. The messenger said, "Oguri Hangan and his retainers have fallen at Uwanogahara. I intend to save only Hangan's life, so hurry to rescue him and have him take the hot spring cure in Kumano (Shingu City, Wakayama Prefecture)." Upon waking, Taiku headed to Uwanogahara as instructed and found Hangan, whose body was still slightly moving among the ten corpses.