In The Story of Hua Monogatari, Haradori had gone to the top of the mountain to watch the stars with his friends. There, he saw a particularly bright star and described it to his friend." That star looks like a gem shining with incomparable light." Later, the original battlefield calendar mentioned,"At that time, we stood on the top of the mountain and looked up at the star in the sky like a huge butterfly dancing in the night sky." The name of this star was not clearly stated in the novel. However, according to the original battlefield calendar, this star might be related to Sirius because Sirius was also known as the star of the wolf in English, which sounded similar to the English word "Butterfly".