Kamuro Aya, Miyaji Mahoro, Hinakura Riko, and Yomine Miharu all chase a balloon only to end up in their lesson room.
Suddenly seeing the four gathered like that, CEO Masaki smiles a smile full of meaning and says that "It's all inevitable."
Meanwhile, Aya is taking care of a weakened little cat.
Judging from its surgery wounds, Mahoro deduces that it's not a stray cat, but a lost pet.
Thus begins the search for its owner, but having grown attached to the cat, Aya can't quite put her heart into the search
Like a balloon that floats through 
the sky, passing from hand to hand...
...مثل بالون يطفو في السماء، يمرّ من يد إلى أخرى
Wie ein Luftballon, der durch den Himmel
fliegt und von Hand zu Hand wandert, …
Tal como un globo rojo vuela
por el aire pasando de mano en mano…
Tal como un globo rojo vuela
por el aire pasando de mano en mano…
Tel un ballon emporté par le vent
qui passe d’une main à l’autre…
Come un palloncino che fluttua in cielo,
passando di mano in mano...
Como um balão que voa pelo céu,
passa de mão em mão...
Как шарик, который летает в небе, 
передаётся из рук в руки...