While out on their rounds one day, Tsugumi and Hisui learn of the existance of a book written by a prostitute from Yokohama's redlight district. Hisui seems especially desperate to get his hands on this book and when Tsugumi learns the reason why she becomes determined to help him. When Tsugumi discovers that Shiginuma Shouko, wife of the shady owner of the Nachtigal dance hall, she finds herself stepping back into potentially dangerous territory alone.
Apparently a man came here last night 
 to sell a Japanese-style book,
يبدو أنّ رجلًا قد أتى إلى هنا ليلة البارحة
،لبيع كتابٍ على النمط اليابانيّ
Offenbar war letzte Nacht ein Mann hier,
der ein japanisches Buch verkaufen wollte, …
Parece que había alguien que quería
vender un libro de estilo japonés,
Parece que había alguien que quería
vender un libro de estilo japonés,
A quanto pare, ieri notte,
Parece que um homem veio vender
um livro estilo japonês noite passada.
Прошлой ночью один человек
приходил продавать японскую книгу,