Kuro-byōshi no buatsui hon ni wa, nanajūyo-nen mae no hachigatsu kokonoka, jūgo-sai no jogakusei ga nōri ni kizanda Nagasaki de no seisan na taiken ga shirusarete ita.The thick, black-covered book describes the horrific experience of Nagasaki, etched in the mind of a 15-year-old schoolgirl on August 9, 74 years ago.