This anime is adapted from a Japanese dating simulation game for the PlayStation 2 and the spiritual successor to KimiKiss, both which were developed and published by Enterbrain. Amagami was released on March 19, 2009. As of November 2010 six manga adaptations have been produced: two serialized in Enterbrain's Famitsu Comic Clear, two in Hakusensha's Young Animal and Young Animal Island, one in ASCII Media Works' Dengeki Maoh and one in Kadokawa Shoten's Comp Ace.
A 25-episode anime TV series adaptation by AIC titled Amagami SS aired from July 2, 2010 to December 23, 2010 in Japan. The anime adaptation is divided into six four-episode story arcs where each arc focuses on one of the main heroines who will become Jun'ichi's love interest. The final episode covers the story arc for the heroine Risa Kamizaki. The anime has eight pieces of theme music: two opening themes and six ending themes; each ending theme is sung by the voice actresses of the heroines of the series in their respective story arc. The first opening theme is "i Love" by azusa which ran from episode 1 to 13 and was released on July 19, 2010. The second opening theme is "Kimi no Mama de" (君のままで?, "Just Being You") by azusa which was used from episode 14 to 25 and was released on October 20, 2010. The first ending theme, used for episodes one through four, is "Kimi no Hitomi ni Koishiteru" (キミの瞳に恋してる?, "I Love Your Eyes") by Shizuka Itō and was released on July 21, 2010. The second ending theme, used for episodes five through eight, is "Kitto Ashita wa..." (きっと明日は...?, "Surely Tomorrow Will...") by Rina Satō and was released on August 18, 2010. The third ending theme, used for episodes nine through twelve, is "Anata Shika Mienai" (あなたしか見えない?, "I Can't See Anything But You") by Hiromi Konno and was released on September 15, 2010. The fourth ending theme, used for episodes 13 through 16, is "Koi wa Mizuiro" (恋はみずいろ?, "Love is Colored Like Water") by Yukana and was released on October 20, 2010. The fifth ending theme, used for episodes 17 through 20, is "Koi wa Aserazu" (恋はあせらず?, "Love is Calm") by Ryōko Shintani and was released on November 17, 2010. The sixth ending theme, used for episodes 21 through 24, is "Nageki no Tenshi" (嘆きの天使?, "The Angel of Lamentation") by Kaori Nazuka and was released on December 15, 2010. The seventh ending theme, used for episode 25 is "Koi no Yukue" (恋のゆくえ?, "Love's Course") by Mai Kadowaki. The eighth and final ending theme, used for episode 26 is "Suteki na Aru Hi" (素敵なある日?, "Nice Day") by Kana Asumi. Both the seventh and eighth ending themes will be released on January 19, 2011.
An original video animation episode which will contain the story arc for Miya Tachibana, including its own ending theme song, will be released on the 13th Amagami SS Bluray and DVD, along with the final televised episode.
More Info you can get in http://en.wikipedia.org/wiki/Amagami