Ao no Himitsu Anime Details and Episodes Collection of Harta one-shots focusing on the theme of young men's secrets. 1. Natsu no Yoru (夏の夜) [Natsuko Takahashi] 2. Kake Meguru Ao (駆けめぐる青) [Kana… Series info · Watch free · Trending anime · Airing schedule FormatMangaStatusFinishedSourceOriginalCountryJapan Drama · Romance Anthology Natsu no Yoru (Related) · Natsu no Sumire (Related) · Ai to Zubunure (Related) · Kurokami wo Mau Koro (Related) · Koko Dake no Hanashi (Related) · Kake Meguru Ao (Related) · Olivia no Iru Sekai (Related) Wakaba no Kyoushikyoku · Hana to Enbukyoku