Childhood's End Anime Details and Episodes The story revolves around Umeko's twins, Ichigo and Kyouichi-Masato and Makoto's kids respectively. Warning: Twincest. (Source: sirC ) Series info Watch free DetailsFormatOne shotStatusFinishedScore51/100CountryJapan GenresHentai TagsFlat ChestIncestTwinsFellatioNakadashi RelatedShounen Teikoku (Parent Story) CharactersUmeko Tamura (Supporting)