Mysteries of Yoshitsune I & II

The theatre play is set in the late Heian (794–1185) and early Kamakura period (1185–1333) in Japan. The main character is young adult Minamoto no Yoshitsune, from the Minamoto clan.[4] Like previous chapters, it is a historical fiction, a world with supernatural powers and spirits (Mononokes).[4] The idea was to create a story where the Oni (Japanese demons) were the origin of vampires, and eventually of the central character.[19] In the Heian period existed those called as Mononoke (spirits), and Mononofu, who were born between humans and Mononoke, and with special powers dominated both Mononoke and humans. The story from Mysteries of Yoshitsune spreads out when the member with inherited blood crossed over to Europe, and became the progenitor of the later vampires.[20]

In the first chapter, after the death of their father Minamoto no Yoshitomo, Minamoto no Yoshitsune and his half-brother Minamoto no Yoritomo were separated, and finally reunited. They peacefully lived in Kamakura. Yoshitsune was served with four companions, called as Four Heavenly Kings, Musashibō Benkei, Ise Saburo, and the Satō brothers Tsugunobu and Tadanobu, with whom had close relationship ties. By their side was Kage (Japanese word for "shadow"), a Mononoke whose life had been saved by Yoshitsune and had haunted him ever since, and his protege, Hiyori, as well Minamoto no Yoshinaka and female warrior Tomoe. However, some including Yoritomo's wife could not conceal their hatred toward Yoshitsune. Around that time, in his residence in Kamakura, Yoritomo was developing a strategy to wipe out the Taira clan, led by Taira no Koremori in the Hokuriku region, thus Yoritomo's vassal, Kajiwara Kagetoki, suggested a secret plan to Yoritomo that would also destroy Yoshitsune and the others’ peaceful lives. Because of Kagetoki's suggestion, Yoritomo granted an audience to Yoshinaka, who willingly departed due to his previous lack of recognition by Yoritomo, despite the opposition by Tomoe who warned him they will not return alive. Yoshitsune and his companions felt that these were the last days they would see the Moon together.[20]

Yoshinaka recklessly marched with his 30,000 troops to the capital via Hokuriku, and managed to win against a Taira force of 100,000 in the Battle of Kurikara. Once again, he won in the following Battle of Shinohara, but no reinforcements or provisions arrived and thus, with the advice of Tomoe, resolved to advance on the capital with the remaining army. He succeeded and was awarded a rank by the Imperial Court. Yoritomo infuriated with the result, on a promise to send reinforcements, he sent Yoshinaka's army west from the capital to Mizushima in Bitchū Province. Yoshitsune and his army also headed into battle as follow-up reinforcements, believing that his brother Yoritomo wanted to help Yoshinaka. However, during the Battle of Mizushima the reinforcements did not arrive, instead Yoshinaka was informed that they had retreated. His army was crushed, while Tomoe was shot trying to protect Yoshinaka. His sorrow became rage, and decided to change his clan's name Minamoto to Kiso, and carry a revenge against the Minamoto's, as well exterminate all the evil ones and unite the world. His actions were regarded as treachery, and thus Yoritomo ordered Yoshitsune and his companions to destroy Yoshinaka.[20]

Kage headed for Yoshinaka ahead of the others, but Yoshinaka already made a blood pact with a Mononoke named En, and thus En attacked Kage. Two Mononoke fought, which ended with Kage's sacrifice to finish En. Not knowing of Kage's death, Yoshitsune faced off against Yoshinaka. As Yoshinaka's heart could not be reached with words, Yoshinaka provoked him with his sword to fight, and when he was going to deliver the killing blow, the sleeping demon that dwelt deep within Yoshitsune's body was awakened, Yoshitsune's body flew into the air, and with his blades sliced Yoshinaka. Yoshinaka was mortally wounded, and being held by crying Yoshitsune, stated that Yoshitsune must inherit the clan's name and take control of this chaotic world. Although they understood each other, Yoshitsune kept calling his name in great grief.[20]