Harahara Sensei Anime Details and Episodes Azusa Tsukumo, a plain and timid chemistry teacher, was living a dead-end life in the countryside. But everything changes when her younger sister, Ruka,… Series info Watch free DetailsFormatMangaStatusFinishedSourceOriginalCountryJapan GenresActionDrama TagsYakuzaFemale ProtagonistGunsRevengeCrimeShounen RecommendationsKoroshiya Yametai!