When Kobato goes to visit Osanai at her home to invite her to eat candied apples, he learns that she has been kidnapped. Just as he leaves the apartment, he receives a mysterious message from Osanai and, with Kengo's help, sets out to find her.
became a summer 
I don't think we'll ever forget.
.أمسى صيفًا لا أعتقد أنّنا سننساه أبدًا
aber dieser Sommer ist
unvergesslich geworden.
acabó siendo un verano
que no olvidaremos jamás.
acabó siendo un verano
que no olvidaremos jamás.
et c’est devenu un été inoubliable.
e invece mi sa non ce la scorderemo mai.
se tornou um verão que acho
que nunca esqueceremos.
А теперь точно не забудем
уходящих каникул.