Boku no Sekai Anime Details and Episodes The fifth instalment of the Sekai Series. An alleged prequel to "Kimi to Boku no Kowareta Sekai," when Byouinzaka Kuroneko and Hitsuuchi Samatoki were in… Series info Watch free DetailsFormatNovelStatusUpcomingSourceOriginalCountryJapan GenresMysteryPsychological RelatedBukimi de Soboku na Kakowashita Kimi to Boku no Kowareta Sekai (Prequel) CharactersKuroneko ByouinzakaSamatoki Hitsuuchi