Kamigakushi kara Ikinobiru dake.

In a certain Honmaru, priestesses who visited for auditing often went missing. You, a female priestess, were selected to be a member of the investigation team to find out the cause. The investigation team, consisting of 2 government officials, 5 priestesses, and swordsmiths as bodyguards, was assigned to investigate the cause of the disappearance. Now it's time to storm into the mysterious Honmaru! Oh, is it just you? Why? Due to a malfunction in the transfer device, only one of you arrives at the destination. As an auditor, you will observe them for a few days. But you are alone.