There are many speculations about Ginchiyo's personality, but according to some reports from Otomo Family Document (大友家文書録), it is said that she was a severe and rigid figure, a valiant woman, with remarkable communication skills, as strong and determined as any famous warrior of the time.

She inherited her father's interests such as the status of castellan, territory, belongings and the famous sword Raikiri (雷切, Lightning Cutter).

[3] She recruited women to become her elite guard and trained all the maidens of the castle in warfare skills to intimidate visitors and to protect it if other clans attacked her domain.

[4] When Toyotomi Hideyoshi led 200,000 men to conquer Kyushu, the Shimazu army retreated to the Higo Province.

[3] After the Tachibana clan siding with Toyotomi Hideyoshi and he had conquered Kyushu in 1587, Muneshige split from the Ōtomo to become a daimyō in his own right.

When Muneshige was absent, Ginchiyo was responsible for managing the Tachibana clan domains and commanding Yanagawa Castle.

[2] After the failure of Hideyoshi's campaign of Korea, Ginchiyo, who never gave birth to a child, divorced Muneshige and became a Buddhist nun.

At the Battle of Sekigahara, Muneshige participated in the attack against Kyōgoku Takatsugu, who was holed-up in Ōtsu Castle in Ōmi Province.

After learning of the defeat of the Western Army, he advised the commander-in-chief, Mōri Terumoto, to hole-up in Ōsaka Castle, but this was rejected and he returned by sea route to Kyūshū.

In the Kyushu Sekigahara campaign, Ginchiyo defended the Ōtomo clan from the invasion of Kuroda Kanbei and Katō Kiyomasa.

[6] Kuroda and Kato were old comrades-in-arms of Tachibana Muneshige from the days of the Korean invasion, and following the unexpected and challenging resistance of Ginchiyo, they proposed that she and her ex-husband should surrender and join them in a campaign against Shimazu Yoshihiro, who was also from the Western Army and fled from Sekigahara.

After Ginchiyo’s death, a discussion ensued among relatives whereby Nishihime was then taken to be cared for in a home in Tanba and, in 1616, she died in Higo Province.

On the day of mourning for Ginchiyo, invitees included members of the Monjūsho, the Netabi, and the Yasutake (the first family where she went for marriage), the Kido (the go-between for Dōsetsu), the Kongōin (the family for faith in Inari (god of harvest)), the Uda (descendants of the Ichizō in the village of Haraka where Ginchiyo resided and caretakers of her grave).