The Kitakomachi Badminton Club is preparing for the Inter-High finals between Nagisa and Ayano. While club feels nervous over Ayano's strange behavior, one day, an unexpected person shows up in the middle of practice.
Big sister?
أختي الكبيرة؟
Große Schwester.
¿Hermana?
¿Hermana?
Ma grande sœur ?
La mia sorellona...
Irmã mais velha...
Сестра?