Strange incidents keep happening in the apartment building where Ruli's friend Aoi lives. The residents get scared and start to move out one by one. Ruli and the gang go to investigate the haunted building.
Hiro's study files!
!ملفّات دراسة هيرو
Hiros Lernaufzeichnungen!
¡Los archivos de Hiro!
¡Los archivos de Hiro!
sui 
Digimon
Познавательные уроки от Хиро!