Nanatsu Boshi Tea Time Anime Details and Episodes Nana-chan is the sister of a well-known seiyuu, Hikarin. For all her life, she lived in a shadow of her talented sister, but Hikari wants to help her grow… Series info Watch free DetailsFormatMangaStatusFinishedSourceOriginalCountryJapan GenresComedySlice of Life TagsSchool RecommendationsMushitori NisutaYonbiku: Yotsuba Koukou PikushibuSakura Maimai