At Mino's invitation, Shouzou and Ine decide to go to the culture festival at her school. Once there, an accident causes Ine to have to change clothes. When she puts on a sailor-style school uniform, she reverts to mannerisms she used in her school days.
we took care of that over 
half a century ago.
.فقد قمنا بذلك قبل أزيد من نصف قرن
das ham wa scho seit ’nem
halben Jahrhundert hinda uns.
eso ya lo hicimos hace medio siglo.
te recuerdo
que ya lo hicimos hace siglos.
il y a plus d’un demi-siècle.
noi abbiamo già sbrigato la questione
 più di mezzo secolo fa.
já cuidamos disso meio século passado!
у нас с тобой уже была полвека назад.