Ikta is a brilliant, but lazy and unmotivated boy.  His childhood friend, a high-ranking daughter of a noble, offers him an easy position at a library if he can help he get the top score on a military exam.  But their lives take a sudden turn when the boat carrying them to the exam runs aground, and Ikta rescues a mysterious girl on board.  When she turns out to be a princess, and they all find themselves behind enemy lines, Ikta is going to start having to work hard for real...
I have five younger brothers, 
and I'm the oldest sister...
لديّ خمسة أخوة صغار، وأنا الأخت الكبرى
Ich habe fünf jüngere Brüder
und bin die älteste Tochter …
Tengo cinco hermanos pequeños…
Soy la mayor de cinco hermanitos…
Je suis l’aînée de six enfants,
dont cinq petits frères…
Ho cinque fratelli più giovani
e dato che sono la sorella maggiore...
Tenho cinco irmãos,
Ну, я старшая в семье, у меня пять братьев…