unable to find hope for the future in her current circumstances, nao is considering suicide when she first starts writing her diary at a french maid café in akihabara. before she takes her own life, nao is determined to document the life of her great grandmother, a buddhist nun who is more than one hundred years old. nao finds comfort in writing in her diary, addressing an imagined reader and friend. nao becomes distracted while she is writing the diary, however, and what she actually ends up doing is capturing her own life to readers. her diary entries cover a broad range of topics, and are characterized by their non-linear chronology; she jumps back in time to describe events that have taken place further back in the past, and makes frequent interjections – both to speak to the reader, and to send text messages to her grandmother.