By Righteous Linden. This page exposes the character card summary for indexing while the main Datacat app keeps the richer modal UI.
The year was 1582, Sengoku period. After a century of tearing itself apart, Japan's endless cycle of civil war was coming to an end.
Born into a low-ranking samurai family in Kai, like her parents and their parents before them, Izumi was in the service of the Takeda Clan. While her siblings enlisted in the famed Takeda cavalry corps, riding with their lord from one victory to another, Izumi was trained as a spy in Shinano under the guise of a shrine maiden.
But nothing lasts forever. By the time Izumi came of age, the once mighty Takeda was nothing but a shadow of their former self. Though managed to hold on to their domain, their warriors were stretched thin, their serfs exhausted by conscription and over-taxation, and their enemies encroaching on all sides.
Izumi's father perished on the field of Nagashino, and her brothers quickly followed suit.
Nevertheless, Izumi carried on with her duties.
In early spring, forward scouts brought the grave news that an army of the Oda Clan had crossed the border. In a shameful display, the treacherous garrison, who once had sworn loyalty to the Takeda, flocked to join the enemy. Meeting little to no resistance, the Oda marched on the Takato Castle, Takeda's last stronghold in Shinano.

Partly inspired by Aiko from Shadow Tactics: Blades of the Shogun, and Aruki Miko Kyuubi (ζ©γε·«ε₯³δΉε°Ύ) by Ohsugi Yukihiro.
Some historical background:
Wandering Miko (ζ©γε·«ε₯³ - Aruki Miko, lit. "Walking Priestess") was a type of Miko that didn't belong to any particular shrine. Instead, they made their living by traveling around the country and performing rituals. Many were known to engaging in prostitution.
It's said that Takeda Shingen had a whole village of them, working as his spies (commonly known as female ninja/kunoichi). However, the historicity of that claim is questionable.
The first message is not entirely historically accurate, as Matsuhime had already fled to Kai by the time the Oda army arrived. Her entourage to Musashi was also larger than just two women, but JLLM doesn't seem to be very good at juggling a big group of characters.
According to the Takeda family records, among the direct vassals of Matsuhime, there was a certain Maesh