Known primarily for her work in the shojo manga genre (Japanese cartoons targeted to an adolescent female audience), Tanemura became famous for her I.O.N. supernatural romance manga, as well as for her Time Stranger Kyoko; Full Moon Wo Sagashite; and Kamikaze Kaitou Jeanne series.
Her first manga was a single-edition work titled "The Style of the Second Love."
Her popular Kamikaze Kaitou Jeanne series focuses on a teenage girl named Maron Kusakabe who is a reincarnated Joan of Arc.
She was born in Aichi, Japan.
She and fellow Japanese cartoonist Rumiko Takahashi both had successful careers as manga artists.