One day, Sylvie, a spy working for a certain kingdom, receives a mission:
"There is a country that plans on attacking us. We need you to find out when they'll attack,
how many soldiers they have, their strategy, everything."
With her skills, she is able to sneak in without trouble.
This kingdom...if she fails her mission, her home country is surely doomed.
And if she gets caught, who knows what will happen to her.
Sylvie proceeds further with an increasing sense of nervousness,
unaware of the cruel torture and indignities that awaited her.