Muhyo, Roji, and Nana visit a rustic hot spring resort to meet a client. They bathe in the hot springs while waiting for him... and then Roji catches a middle-aged man peeping into the women's bath at Nana. The man turns out to be their client and the author of a current best-selling novel series, "The Butterfly of the Night," Yontani Abeyuki.
Yontani Abeyuki 
The Butterfly of the Night 
Part 1 and 2
يونتاني أبيوكي 
فراشة الليل 
الجزء 1 و 2
„Der Nachtschmetterling“.
DEUX MILLIONS D’EXEMPLAIRES VENDUS
Abeyuki Yontani
La farfalla della notte
Abeyuki Yontani
Borboleta da Noite
Parte 1 e 2
Абэюки Ёнтани «Ночная
бабочка» Часть 1 и 2