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...
a black shadow was sitting at
 the piano in the hall downstairs...
كان هناك ظلّ أسود يجلس أمام البيانو
في القاعة في الأسفل
Da saß am Klavier im Erdgeschoss …
una sombra negra
estaba sentada en el piano.
Une ombre noire était assise
devant le piano au rez-de-chaussée.
ho visto una sagoma nera seduta al pianoforte
nella sala al piano terra.
uma sombra negra estava sentada
no piano no hall do primeiro andar.
в зале на первом этаже
за пианино... появилась чёрная тень.