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...
She's only lived two-thirds
 as long as I have,
فهي لم تعش إلّا ثلثَيّ ما عشتُه أنا
Sie hat erst zwei Drittel
meiner Lebenszeit gelebt,
Su vida es una tercera parte
de la nuestra,
Su vida es una tercera parte
de la nuestra,
Elle n’a même pas vécu
le tiers de sa vie.
Si tratta di una bambina che ha un terzo dei miei anni.
É uma garota que viveu apenas
 dois terços do que você viveu
Она прожила всего-то две трети моей жизни,