Moan Anime Details and Episodes Two sisters and their cleaning-obsessed mother are at first only mildly annoyed by their drains being clogged. Until the drains begin to leak a foul smell… Series info Watch free DetailsFormatOne shotStatusFinishedSourceOriginalCountryJapan GenresHorror TagsShoujo RelatedItou Junji Kessakushuu (Related)Museum of Terror (Related)Umeku Haisuikan (Related) CharactersReina ShimizuMari ShimizuNumei (Supporting)Reina's Mother (Supporting)