Taira-no Koremori was an heir of the Taira family. History said that Koremori survived the Dannoura battle that was the final battle of the Minamoto-Taira war, and after that he became a monk, but finally he committed suicide in the water, or died with an illness. According to 'The tale of Heike', Koremori had been thinking about his wife and son all day long even though he was at the battlefield. He run away from the battlefield Yashima secretly, and became a monk and committed suicide in the water finally.

Taira-no Shigemori who was a father of Koremori is well known as a great leader of the Taira family. His death became one of the reasons to start the Minamoto-Taira war. At the Heiji reverion in 1159, Shigemori saved Minamoto-no Yoritomo who was a son of a leader of the Minamoto family. That became a reason that Yoritomo saved Koremori in this play after that. And there were many people who felt indebted to Shigemori, and Yszaemon was one of them. Yazaemon hid Koremori in his home, because Koremori was Shigemori's son.

However, Kokingo's loyalty was to the only one person, Koremori. At the first act, Kokingo had managed to save Koremori's wife and son, and at the third act he fought to save them and was killed finally. And his severed head was taken away as a koremori's fake head. As a result, Koremori could meet his family after that.

Koremori said that Kokingo had shown his loyalty with his death more than when he lived. I think that that isn't enough for Kokingo's loyalty. It isn't wrong to say that he said terrible words about Kokingo's death.

Yazaemon had a son Gonta and a daughter Osato. Gonta's wife and son were arrested as Koremori's family, and Yazaemon killed Gonta finally. Osato loved Koremori who was well known as a beautiful noble man, but of course Koremori didn't love her, nevertheless he had a sexual relationship with her, because he felt indebted to Yazaemmon. At the result, Koremori destroyed Yazaemon's family.

At the Fijigawa battle, Koremori was surprised with the sound of birds instead of the Minamoto army, and he run away from the battlefield as soon as possible without fighting. Koremori was a heir of the Taira family, so that everyone expected him to be a great commander, but he couldn't respond it. If Koremori had been born as a son of just a wealthy family, he could have had enough ability to live happily.

This play's hero is Yoshitsune, and this act's hero is Koremori, nevertheless Kokingo and Gonta are real heroes in this act. Koremori made Kokingo and Yazaemon's family fall into a terrible situation, nevertheless Koremori seemed to watch everything like a bystander, even his life and death. Finally Koremori became a monk, but it wasn't a reason that he was interested in a thought of nothingness, Buddhism or Zen. I think that Koremori might have been tired of himself to live as a heir of the Taira family. And it made him be a bystander. I think that Koremori could have been an unsuitable person to society. (2004,3,6)