"Re-sublimity" is Kotoko's second maxi single under Geneon Entertainment, released on November 17, 2004. The title track was used as an opening theme for the anime series Kannazuki no Miko while "Agony", its B-side, was used as the ending theme. "Suppuration -core-" was used as a soundtrack for the anime and a rearrangement of the song "Suppuration" appears in her Hane Live Tour 2004 Limited Album. The single peaked at number eight on the Oricon charts and charted for 12 weeks. Since it sold 50,119 copies, this is considered Kotoko's best selling single.
Seed is Mami Kawada's debut album which was released on March 29, 2006. This album is under Geneon and was produced by I've Sound. This album also includes her first two singles "Radiance / Chi ni Kaeru: On the Earth", and "Hishoku no Sora" and the collaboration single "Face of Fact " with KOTOKO. It peaked at the #12 spot in the Oricon charts and charted for 5 weeks.
"Oboetete ii yo/DuDiDuWa*lalala" (覚えてていいよ/DuDiDuWa*lalala) is the first single released by Kotoko produced by I've Sound and under the Geneon Entertainment label. "DuDiDuWa*lalala" was used as the ending theme for the anime Tweeny Witches. The single reached number fifteen on the Oricon weekly charts and charted for seven weeks.
"being" is the fifth single by Kotoko under Geneon Entertainment. The title track was used as the second opening theme for the anime series Shakugan no Shana. As of January 2014, this remains Kotoko's most successful single since it peaked at #4 in the Oricon charts and sold a total of 34,736 copies.
"Chercher" is Kotoko's sixth maxi single under Geneon Entertainment. The title track was used as an ending theme for OVA of Maria-sama ga Miteru. The lyrics of the song was written by the creator of Maria-sama ga Miteru, Oyuki Konno.
Kirei na Senritsu (きれいな旋律) is the seventh single by the singer Kotoko for Geneon Entertainment. The title track was used as the final ending theme for the OVA of Maria-sama ga Miteru. The lyrics to this song were written by Konno Oyuki, the creator of Maria-sama ga Miteru, and the melody was composed by the former Megadeth guitarist Marty Friedman.
"Hayate no Gotoku!" (ハヤテのごとく！) is Kotoko's eighth maxi single produced by I've Sound and released on May 23, 2007, under Geneon Entertainment. The title track was used as the first opening theme for the anime series Hayate no Gotoku, episodes 1-26. The single peaked at #7 in the Oricon charts selling 19,921 units in its first week of release.
"Shichiten Hakki Shijou Shugi!" (七転八起☆至上主義！) is Kotoko's ninth single, produced by I've Sound under the Geneon Entertainment label. The title track was used as the second opening theme for the anime series Hayate no Gotoku, episodes 27-52. It peaked at the #8 position in the Oricon charts and sold a total of 15,749 copies for two weeks. As of November 26, 2007, it has sold a total of 28,619 copies.
"Shining Stars Bless" is the debut single of I've singer Kaori Utatsuki under Geneon Entertainment. It was released on August 1, 2007. The title track was used as the opening theme for the visual novel/anime Nanatsuiro Drops. It reached #23 in the Oricon charts and has sold a total of 5,339 copies in its first week.
"Chasse" is Kaori Utatsuki's 2nd single under Geneon Entertainment. It was released on November 21, 2007. The title track was used as the third ending theme for the anime series Hayate no Gotoku!. It managed to get in the #30 spot in the Oricon charts with a total sales of 4,984 copies in its first week.
"Real Onigokko" (リアル鬼ごっこ) is Kotoko's tenth maxi single under Geneon Entertainment, released on December 19, 2007. The title track was used as the theme song for the Japanese science fiction thriller movie of the same title, launched in Japan in 2008, starring Takuya Ishida and Mitsuki Tanimura. Real onigokko means "real tag game" in English. The single peaked at the #15 position in the Oricon charts selling 7,588 units in its first week of release.
"Blaze" is Kotoko's eleventh maxi single produced by I've Sound under the Geneon Entertainment label. The single was released on March 12, 2008. The title track was used as the second introductory theme for the anime series Shakugan no Shana Second, starting with episode 16 which was broadcast on January 31, 2008. The B-side, "Sociometry", was used as the ending theme for Shakugan no Shana Second. This is Kotoko's second tie-in with the anime series after her "Being" single.
C.G mix is one of the main composers of the Japanese music production I've Sound.
"Wheel of Fortune" is Eiko Shimamiya's third single produced by I've Sound and Geneon Entertainment label. It was released on April 16, 2008. The title track is used as the opening theme to the live-action movie for the anime series Higurashi no Naku Koro ni. The B-side "Diorama" is the ending theme to the series.
"Believe" / "Kumorinochi, Kaisei" is a single released by Japanese boy band Arashi. It was released on March 4, 2009 through their record label J Storm. "Believe" was used as the theme song for the Takashi Miike movie Yatterman starring Arashi member Sho Sakurai, and "Kumorinochi Kaisei" was used as the theme song for the drama Uta no Oniisan starring member Satoshi Ohno. The single was released in three editions: a regular edition containing a bonus track and instrumental versions of all the songs released in the single, and two limited edition both containing a DVD with a music video of one of the A-side tracks.
"Chikai" is Eiko Shimamiya's fourth single produced by I've Sound and Geneon Entertainment label. It is set to be released on April 8, 2009, a year after releasing her third single "Wheel of Fortune". The title track is used as the opening theme for Higurashi no Naku Koro ni Chikai (ひぐらしのなく頃に誓), the live-action film sequel for the first Higurashi no Naku Koro ni live-action film.
Spyglass is the first mini-album by the Japanese singer Kaori Utatsuki. This album was scheduled to be released on August 5, 2009 under the Geneon Universal Entertainment label.
"Screw" was 14th single by the J-pop singer, Kotoko, was released on December 16, 2009. The title track was used as the theme song for Mamoru Oshii's film Assault Girls.
Anime's Compilation Best is the first compilation album of J-pop singer Kotoko under Geneon Entertainment. It was released on December 23, 2009.
"Loop-the-Loop" is the 16th single of the J-pop singer Kotoko, released on October 20, 2010. The title track is used as the opening theme for the anime series Motto To Love-Ru, the sequel to the anime adaptation of To Love-Ru.
