Later in her career, she became particularly known for her two Nikkatsu Roman Porno films released in 1976.
Takamura had been a member of Golden Half until the band's split in 1974.
She released a solo album titled Tenshi no Asa (天使の朝) from Nippon Crown in 1975.
In 1976, Takamura played the title role in Masaru Konuma's nunsploitation film Cloistered Nun: Runa's Confession.
She followed this film with Kōyū Ohara's Runa's Confession: "Men Crawling All Over Me" a semi-autobiographical, erotic retelling of her pop music career.