滝夜叉姫 Takiyasha hime is the daughter of Taira no Masakado and a sorceress who raised an army of yōkai and attempted to conquer Japan. Her story became popular in the Edo period, and is depicted in novels, woodblock prints, and kabuki. The details of her story vary quite a bit from version to version. After Taira no Masakado was defeated and his rebellion quashed, the imperial court declared Masakado’s entire family to be traitors and ordered their execution. Two of Masakado’s children, Yoshikado and Satsuki hime, somehow managed to escape their execution. They remained in hiding at a temple at the base of Mount Tsukuba for years. Satsuki hime became a devoted nun, but her brother was not interested in religion. He spent his time exploring the mountain and playing at being a samurai. One day while exploring Mount Tsukuba, Yoshikado encountered a mysterious wizard named Nikushisen. Nikushisen informed Yoshikado that he was the heir of Taira no Masakado, and gave him a magic scroll containing the secrets of frog magic. Yoshikado returned to his sister, and told her everything Nikushisen had said. He gave her the scroll. She studied it and also became a master of frog magic, and took the name Takiyasha hime. The two of them decided to fulfill their father’s dream of overthrowing the emperor and ushering in a new order. In a different version of the story, instead of Yoshikado meeting Nikushisen, Satsuki hime secretly began to perform the dreaded curse ushi no koku mairi—the shrine visit at the hour of the ox. Every night, she snuck into the Kifune Shrine and performed the ritual. After twenty-one nights, she awakened the aramitama—the violent, wicked spirit—of the Kifune Shrine. The aramitama spoke to her, granting her the knowledge of onmyōdō, and instructing her to take the name Takiyasha hime. Takiyasha hime and Yoshikado returned to their father’s fortress of Sōma Castle in Shimosa province. They called on the surviving soldiers who remained loyal to their father’s cause. Using her newly acquired black magic, Takiyasha hime raised an army of yōkai to continue her father’s rebellion against the emperor. Ōya no Tarō Mitsukuni, a warrior who was knowledgeable about onmyōdō, had heard of Takiyasha hime’s plans and set out to Sōma Castle to investigate if the rumors were true. When he arrived, Takiyasha hime disguised herself as a prostitute and tried to seduce Mitsukuni. However, Mitsukuni suspected a trap and told her about the brutal death of Taira no Masakado. Takiyasha hime could not contain her emotion, and she fled from Mitsukuni. That night, she ambushed him with an army of skeletons and yōkai. According to Utagawa Kuniyoshi’s famous ukiyoe print, Takiyasha hime unleashed a gashadokuro upon him—a gigantic skeleton as tall as a castle. Riding into battle on top of a giant toad, Takiyasha hime assaulted the brave warrior Mitsukuni. In the end, despite her magic, she was defeated just as her father was. Her short rebellion was snuffed out just as his was. Today, many statues of frogs decorate Taira no Masakado’s gravesite in Kubizuka. The Japanese word for frog, kaeru, is a homophone of the word meaning “return.” Masakado’s severed head longed to return to his hometown, and patrons hope that Masakado’s spirit will “kaeru,” return, to heaven—and not cause any more harm on Earth. It is also said that this reflects the “frog magic” that Nikushisen taught to his daughter, Takiyasha hime.