"Welcome to the world of science!"  When Yatori was 9 years old, she was sent to study with the general Bada Sankrein, and met a young boy her age, Ikta.  The world he shows her is new and exciting, like nothing she's ever seen.
It's better that one of us live
than both of us die.
أن يعيش أحدنا خير من أن يموت كِلانا
Lieber überlebt einer von uns,
anstatt dass beide sterben.
Uno vivo es mejor que dos muertos.
Uno vivo es mejor que dos muertos.
Mieux vaut un survivant que zéro.
Meglio che se ne salvi uno solo
 piuttosto che nessuno.
Um sobrevivente é 
melhor que dois mortos.
Пусть лучше кто-то один выживет, 
чем оба умрём.