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...
Spirit traces are traces left behind 
when a spirit touches something.
تُترك الآثار الروحية عندما 
تلمس روحاً شيئاً
Wenn Geister etwas berühren,
Los rastros espirituales son huellas
que deja un espíritu al tocar algo.
Les fantômes en laissent
quand ils touchent quelque chose.
Le impronte di cui parliamo sono tracce
che gli spiriti lasciano quando toccano qualcosa.
Traços espirituais são os vestígios deixados
quando um espírito toca alguma coisa.
Следы духов... появляются
на вещах от их прикосновений.