Secret Flight: Business Class Anime Details and Episodes Continuation of Secret Flight. Yuzuru and Toshiyuki are currently in a relationship and deeply in love with each other. Toshiyuki proposes to Yuzuru to… Series info Watch free DetailsFormatMangaStatusFinishedSourceOriginalCountryJapan GenresDramaRomance TagsBoys' LoveAviationWork RelatedSecret Flight (Prequel)Romantic Flight (Sequel)