Kokkoro arrives at the post office to send a letter, where she is unfortunate enough to encounter a group of robbers who have broken in. In order to recover their stolen letters, Kokkoro joins forces with two Lucent Academy students named Suzuna and Misaki to pursue the thieves all the way to their hideout...
but for some reason our grades 
just keep dropping...
...لكن لسبب ما، تتواصل علاماتنا في الانخفاض
aber unsere Leistungen
nehmen noch weiter ab.
pero nuestras calificaciones
siguen bajando…
pero nuestras notas
siguen bajando…
mais nos notes
ne cessent de chuter…
Ma ciononostante i nostri voti
hanno continuato a scendere...
mas por algum motivo, nossas
notas continuam caindo...
но наши оценки почему-то
становятся только хуже.