Fort Jinya is first seen in Chapter 7 of Birthright. At the time of this chapter, Sakura and her retainers Hana and Subaki are using the fort as a makeshift hospital for wounded soldiers and citizens. Shortly after Corrin's arrival, the fort is surrounded by a group Nohrian soldiers, lead by Silas. Sakura stays with the wounded, sending her retainers with Avatar's group to engage the enemy.
Fort Jinya is seen towards the near end of Conquest in Chapter 22. Corrin must seize the fort to continue their invasion of Hoshido, as it is said that the fort is essentially Hoshido's front line. At the time of this chapter, Sakura is healing soldiers in the fort, only to be alerted of Corrin's arrival by Yukimura. Yukimura advises Sakura to retreat from the fort, but she refuses and instead chooses to fight Corrin.
After the battle, Xander claims the fort for Nohr and gives the Hoshidan army a chance to surrender, promising that they will be spared if they do. Sakura and Yumimura agree to lay down their weapons to Nohr. Hans and Iago then appear to break Xander's promise and start executing Hoshidan troops. Corrin and Xander both oppose the killing; Xander even threatens to kill Iago. Before Hans and Iago are stopped, Garon enters the scene to overrule Xander and threatens to kill him and Corrin if they continue their protest and allows Hans and Iago to continue, forcing Xander and Corrin to stand down. While being taken away, Sakura sobs at the massacre while Yukimura expresses his anger towards the Nohrians, vowing to never forgive them.
Shortly after returning from Valla, Corrin goes to Fort Jinya in hopes of convincing Hoshido to join them in Chapter 8. However, Corrin has been labeled a traitor to be attacked on site. When Corrin arrives at the fort, they are met by Yukimura, who orders his guards to capture Corrin.
- This is one of only two locations to be visited in all three routes, the other one being Sevenfold Sanctuary.