Muhyo and Roji visit the home of Shiratori Aya, a client who says a black shadow has been playing her piano at 2:00 AM every night. Muhyo concludes that the shadow is a vengeful spirit born from countless people who envy Aya's talent, but in fact... Later, a package arrives at the bureau for Roji, containing a "magic-sealing pen" and an invitation to take an exam for a promotion to first-class secretary. Then Nana enters with a photo she took of a spirit on a pedestrian bridge...
Dregs are still dregs, no matter 
how much of it there is.
الحثالة تبقى حثالة مهما بلغ عددها
Egal, wie viel sich ansammelt,
Abschaum bleibt Abschaum.
La basura no deja de ser basura.
Or, une énergie aussi vile
ne sert à rien.
È una nullità, e tale rimarrà per sempre.
Não importa o quanto se
reúna, lixo segue sendo lixo.
Отребье есть отребье,
даже если его много.