Iijima began her entertainment career in 1988 on the late night Japanese TV show 11 PM, followed by a number of appearances in commercials and as a Race Queen. An early cinema role was the December 1990 straight-to-video V-cinema drama Strawberry Times 4: Kisaragi San Shimai no Gyakushū which also starred Risa Tachibana and Mari Ayukawa. The next year, she was featured in the comedy Funky Monkey Teacher which was released to theaters by the Toei Company in December 1991. Over the next four years, Iijima starred in more than a dozen V-cinema productions as well as posing for gravure photobooks and performing in gravure videos. In January 1995, Iijima was cast as the lead in the action feature film Zero Woman: Final Mission, a revival of the Zero Woman character from Miki Sugimoto's 1974 film. Despite the title of this film, the Zero Woman franchise continued with a number of sequels. The film was released in an English-language version on VHS and DVD in May 2002 as Zero Woman: Final Mission.
Early TV work
After Zero Woman, Iijima worked largely in the domain of Japanese TV dramas including the Fuji Television suspense drama Taeko Sashow's Last Case starring Atsuko Asano which aired from July to September 1995 and the 1998 comedy also on Fuji TV, Sometime Somewhere, co-starring Masahiko Nishimura, which had a setting in New York City. In August 1999, Iijima starred in the Fuji TV produced theatrical film Messengers. In this romantic comedy, Iijima's character, Naomi Shimizu, is a spoiled rich girl in a dream job who is brought down by circumstances to being a bicycle delivery messenger. Various complications ensue including a romance with her new boss played by Tsuyoshi Kusanagi. Iijima returned to television in 2000 with the Fuji TV series Bus Stop which ran in twelve episode from July to September 2000. Her role was once again the poor little rich girl but this time she has to resurrect a fading bus company in Tokyo with Teruyoshi Uchimura as the love interest. In the 2001 Tokyo Broadcasting System drama Dreams of Romance, Iijima is cast against type as a breadwinner housewife with a sullen stay-at-home husband. For her 2002 TV series Wedding Planner, Iijima returned to Fuji TV and the romantic comedy genre as the vice president of a company in the bridal industry. In late 2002 she appeared as the oldest of four daughters of a widowed father in the TBSdomestic dramaLife With Dad. Iijima wed musician Nobuteru Maeda in September 1997 but their marriage ended in divorce in March 2001.
Later TV work
Iijima continued acting in Japanese TV serials including the 2003 Fuji TV romance Innocence in Bloom and the 2005 TBS romantic drama Filthy Tongue. but she also starred in a serious drama about World War II. In the October 2005 TV movie Visas for 6,000 Lives Iijima played Yukiko Sugihara, who helped her husband, Japanese Consul Chiune Sugihara, write visas which saved the lives of six thousand Lithuanian Jews in 1940. For the 2008 TV series Hitomi, broadcast March to September 2008, Iijima, no longer the ingenue, plays the mother of the twenty-year-old heroine Hitomi. The romantic comedy How to Marry a 40-Year-Old Woman in 90 Days has a 23-year-old "salaryman" falling in love with Iijima's character, an "around 40 year old" beautician. The series was originally aired on the mobile phone channel BeeTV but its popularity led Fuji TV to combine the episodes into a TV movie broadcast in December 2009. Iijima took on her first stage role in May 2010 with the play Nancy, playing a receptionist at a bank where a hostage crisis occurs. Also in the "suspenseful comedy" was actor Masahiko Nishimura who had previously worked with Iijima in the 1998 TV series Sometime Somewhere. In early 2013, Iijima shared top billing with Aya Ueto in the NHK ten part television series Someday at a Place in the Sun about two women who meet in prison, one who committed a crime for her lover while the other killed her abusive husband. The series, based on the books by Asa Nonami, follows the lives of the two women after their release from prison. In January 2013, Iijima announced that she had married a company CEO one year older than her on December 25, 2012 and that a wedding ceremony was planned for early 2013.