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.
I was finally able to learn how my 
mother truly felt, thanks to you.
.استطعتُ أن أعرف مشاعر أمّي الحقيقيّة بفضلك
Dank dir konnte ich endlich erfahren,
was meine Mutter für mich empfunden hat.
Gracias a ti por fin pude comprender
cómo se sentía mi madre.
Gracias a ti, por fin pude comprender
cómo se sentía mi madre.
C’est grâce à toi
Finalmente, grazie a te,
ho capito cosa provava mia madre.
Graças a você, enfim conheci os sentimentos
verdadeiros da minha mãe.
Благодаря тебе я смог узнать
истинные чувства своей матери.