Ino decides to challenge herself by participating in the Earth Science Olympiad. It's her first real step forward as their club president.
As their second semester comes to an end, the club celebrates Christmas and New Year's together around a warm hot pot followed by star gazing.
Yet as they're excitedly looking up at the winter diamond, Ao suddenly begins to cry. She says everything's all right, but...
It's really rare, since they only 
hold it once every four years!
!إنه أمرٌ نادر، بما أنه يقام مرّة كلّ أربع سنوات
Sie findet nur alle vier Jahre statt
und ist somit total selten.
Una vez cada cuatro años
es bastante inusual.
Una vez cada cuatro años
es algo bastante inusual.
Insomma, parliamo di una gara
che si svolge una volta ogni quattro anni! Che forza!
É incrível, só acontece uma
vez a cada quatro anos!
Жаль, её проводят раз
в четыре года.