Sonna, 14-sai. Anime Details and Episodes Takahashi and Shioya are second-year middle school students who sit next to each other. A story of innocent 14-year-olds whose hearts are shaken by every… Series info Watch free DetailsFormatMangaStatusAiringSourceOriginalCountryJapan GenresRomanceSlice of Life TagsShoujoSchoolFemale Protagonist Recommendations12-sai.