Nogizaka Asuka no Himitsu Anime Details and Episodes The series centers on Haruka's daughter, who aims to be an expert in Akihabara culture. The story follows her relationship with a male "casual." (Source:… Series info · Watch free · Trending anime · Airing schedule FormatNovelStatusAiringSourceOriginalCountryJapan Comedy · Romance Otaku Culture · School Nogizaka Haruka's Secret (Prequel) · Nogizaka Asuka no Himitsu (Adaptation) Ore no Imouto ga Konna ni Kawaii Wake ga Nai Haruka Nogizaka (Supporting) · Yuuto Ayase (Supporting) · Nanami Nanashiro (Supporting) · Mika Nogizaka (Supporting) · Asuka Nogizaka