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.
After a while, my mother disappeared 
without saying anything.
.بعد مدة، اختفت أمّي دون قول أيّ شيء
Nach einer Weile verschwand
meine Mutter wortlos.
Al poco tiempo, mi madre
desapareció sin decir nada a nadie.
Al poco tiempo, mi madre
desapareció sin decir nada a nadie.
Peu de temps après,
Qualche tempo dopo quell'episodio,
mia madre sparì senza dire niente.
Depois de um tempo, mamãe
desapareceu sem dizer nada.
Вскоре после этого моя мать
исчезла, не сказав ни слова.