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...
My brother plays singles, 
and I've got Ko-san—
—يلعب أخي في فريق فرديّ ولديّ كو-سان
Mein Bruder spielt im Einzel
und ich hab doch Ko-san.
Mi hermano juega en individuales
y yo tengo a Ko.
Mi hermano juega en individuales
y yo tengo a Ko.
Sôta fait le simple,
et je joue déjà avec Kô…
Mio fratello gioca in singolo,
e io faccio già coppia con Ko...
Meu irmão joga no individual
e eu tenho o Koki...
Брат же играет один,
а у меня есть Ко...