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.
But be careful you don't 
carelessly burn your friends.
.لكن احرص على ألّا تحرق أصدقاءك بطيش
aber pass auf, dass du deine Freunde
nicht aus Versehen anzündest.
ten cuidado
de no quemar por error a tus amigos.
Ten cuidado de no quemar
por error a tus amigos.
mais fais attention à ne pas brûler
un camarade par mégarde.
Tuttavia...
mas cuidado para não queimar
seus amigos por acidente.
Только следи, чтобы ненароком
не сжечь своих друзей.