Open the Door Anime Details and Episodes "Mr. Esper, I told you already. I’m a B0-grade guide." Lee Yeoni, a powerful dual-blood, has spent years hiding his striking looks and exceptional… Series info Watch free DetailsFormatMangaStatusAiringScore54/100SourceWeb novelCountryKorea GenresRomanceSupernatural TagsBoys' LoveFull ColorSuper Power RecommendationsGuiding Hazard