One and Only Anime Details and Episodes Ten years ago, Yeon-Ju left Eun-Seong, the man she loved, to protect his budding career. Now a stylist and devoted single mom to her son, Han-Byeol, she's… Series info Watch free DetailsFormatMangaStatusHiatusSourceWeb novelCountryKorea GenresDramaRomance TagsFull ColorHeterosexualTime SkipLong StripActingPrimarily Adult Cast RecommendationsNal Daleun AiPositively Yours CharactersYeon-Ju GoEun-Seong ImHae-Yeong Jin (Supporting)Han-Byeol Go (Supporting)