[DeepL Translation - needs review] I will open this country," said Matsuura Shizan, a former lord of Hirado, who was busy writing "Koshi Yawa" at his Edo domain residence. Hikoma Shuusei, who was taken by his friend Senemon and summoned to the lower house, was astonished. If such a comment was exposed, he was immediately beheaded. What did Hikoma, who was well versed in astronomy and navigation, have in store for him? Hikoma settled in a back row house in Kanda Tsumagoizaka, and searched for...
