Doubles teams are reassigned when a new member joins the badminton team, and former singles player Saeki Sota is assigned to play doubles with his brother Toya. Toya is excited to play doubles with his brother, but Sota's feelings on the change are complicated, and a fight between the two threatens to dissolve their doubles team entirely. Meanwhile, Toya finds himself in a bind at work, too...
Sometimes I wonder stupid things, 
like why I had to be the older brother...
...أحيانا أتساءل عن أمور سخيفة، مثل سبب كوني الأخ الأكبر
Manchmal frage ich mich so Blödsinn,
warum ich der große Bruder sein muss.
A veces me pregunto por qué tengo
que ser el hermano mayor.
A veces me pregunto por qué tengo
que ser el hermano mayor.
Je me pose des questions idiotes,
"Ma perché dovevo nascere io
 come fratello maggiore?"
Às vezes fico pensando por que tive que ser o
irmão mais velho, por mais idiota que seja...
Иногда мне в голову лезут дурацкие мысли
вроде «ну почему я старший?».