"D+" (story) to "B+" (music). The second DVD collection included episodes 14 through 25 plus the OVA episode 26. This DVD collection was reviewed by Chris Beveridge and given an overall grade of "C". Theron Martin also reviewed this collection and awarded grades from "B−" (story) to "B+" (music). Streaming Funimation offers the entire 26-episode series from their streaming site for North America, both subtitled Japanese and English dubbed versions. Manga On November 2, 2007, Shueisha began publishing a manga adaptation of the series, which is serialized in the Japanese shōnen manga magazine Jump Square. A total of six chapters was published; the last of which was in April 2008. Shueisha released a bound volume containing all the chapters on May 2, 2008. Though the story remains to revolve around the lives of Jin Kamishina and Toa, the severity of the Dragon threat is increased in the manga, as Earth has been publicly invaded by these "type D" alien life-forms. The situations and personalities of most of the characters, especially those of the two protagonists, are also different compared to their anime counterparts. Music There are three pieces of theme music used in the anime series: one opening theme and two closing themes. The opening theme, "perfect blue", is performed, composed, and written by the J-pop group Jazzin' Park. ATSUMI also performed the piece alongside Jazzin' Park, as a guest vocal. The two ending themes are "Rain Of Love", which is performed by Yukari Fukui and composed by Hiroshi Takaki, with the lyrics written by Shoko Fujibayashi, and "FIGHT OR FLIGHT", which is performed by Yū Kobayashi. On November 21, 2007, Jazzin' Park and Yukari Fukui each released a four track single. The titles of the theme songs are used as the titles for its corresponding single, which each contains an instrumental version of its theme song, along with at least one different song sung by the artist. Yū Kobayashi's second single, "FIGHT OR FLIGHT", also contained four tracks, and was released on January 23, 2008. Yukari Fukui's "Rain Of Love" is also the second single she has released, while Jazzin' Park's "perfect blue" is the first single they have ever released. Internet radio An internet radio broadcast began airing every Wednesday since September 5, 2007. The Dragonaut Station ISDA Information Agency centers around three voice actors from the anime answering e-mail questions about the series. The three female voice