Season 1 Koshiro and Nanoka fall deeply in love, then discover they are the children of their divorced estranged parents... making them brother and sister. How will their relationship turn out? Details Casts Videos Galleries Posters Season Lists Episode Lists Title Season 1 Genres Animation Drama Air Date 2004-04-01 Episode Runtime 00 Hours 24 Minutes Season Number 1 Episode Count On Season 1 13 Production Companies ACGT Kenta Miyake... Koushirou Saeki (voice)... Yuki Nakamura... Nanoka Kohinata (voice)... Akemi Okamura... Kaname Chidori (voice)... Kousuke Okano... Kei Odagiri (voice)... Ryoka Yuzuki... Yoiko Akimoto (voice)... Ryoichi Tanaka... Zensou Saeki (voice)... Risa Shimizu... Ouko Tamaki (voice)... Risa Shimizu... Youko Kan (voice)... Satomi Akesaka... Futaba Anzai (voice)... Yuko Kato... Makie Kohinata (voice)... Koi Kaze Opening [OP] (Opening Credits) Original Size (1600x900) Original Size (1280x720) Original Size (666x999) Original Size (1515x2154) Original Size (800x1179) Original Size (2000x3000) Season 1 13 Episode(s) 2004-04-01 Episode 1 2004-04-01 First Flower... Episode 2 2004-04-08 Apprehension of Spring... Episode 3 2004-04-15 Gentle Breeze... Episode 4 2004-04-22 Evening Shower... Episode 5 2004-04-29 Distant Thunder... Episode 6 2004-05-06 Autumn Thought... Episode 7 2004-05-13 First Thought... Episode 8 2004-07-07 Frozen Dew... Episode 9 2004-05-20 Snow Flakes in the Wind... Episode 10 2004-05-27 Wintry moon... Episode 11 2004-06-03 Lingering Winter... Episode 12 2004-06-10 Spring Thunder... Episode 13 2004-06-17 Heat Haze...