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...
She can play the piano 
without any worries now.
يمكنها عزف البيانو بلا قلقٍ الآن
Jetzt kann sie wieder
beruhigt Klavier spielen.
Ahora podrá tocar el piano
sin preocupaciones.
Adesso potrà suonare il piano senza pensieri.
Agora ela pode tocar
piano sem se preocupar.
Теперь она сможет спокойно играть.