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 feel like I got to see 
my mother thanks to you.
.أشعر أنّني استطعتُ رؤية أمّي بفضلك
Dank dir konnte ich heute
meine Mutter wiedersehen.
Siento que pude ver a mi madre
gracias a ti.
Sé que pude ver a mi madre
gracias a ti.
Grâce à toi, j’ai l’impression
d’avoir revu ma mère.
Se ho visto mia madre, è merito tuo.
Eu sinto que pude ver
minha mãe graças a você.
Благодаря тебе я смог узнать свою маму.