[3] In November 1998, under the name Rika Inoue (いのうえ梨花), she posed for the men's magazine Urecco[4] and as Maria Takagi, issued a photobook of nude pictures titled Blue in December 2000.
[5] The next year, Takagi starred in the erotic fantasy Mermaid Girl (マーメイド ～海から来た少女～) written and directed by Kei Marimura which reached theaters in July 2001.
[11] It was announced in October 2003 that Takagi would play the "other woman" of a married man in the Fuji TV drama series Someone is next to you (あなたの隣に誰かいる, Anata no tonari ni dare ka iru) but that she would be continuing in her AV career.
[16] Takagi's first feature film after her retirement from adult videos was the romantic horror comedy Ghost Shout (ゴーストシャウト, Gōsuto shauto) with Saori Takizawa which was first shown in Tokyo theaters in December 2004.
[21] Beginning with the fourth installment in July 2007, Takagi has been cast as hotel employee Kozue Morita on the two-hour TV Asahi mystery movies Onsen maruhi daisakusen!