However, his aunt and uncle were planning to rob Shino of Murasame (a fictitious sword), a treasure sword of the Kamakura kubo family which had been entrusted to Shino by his father, and to get rid of him.
しかし伯母夫婦は、信乃が父から託された鎌倉公方家の宝刀村雨(架空の刀)を奪い信乃を除くことを企んでいた。