[1][2] She graduated from the Junior College of Tokyo Women's University, after which she worked at a publishing company for two years, married her first husband in 1971, and had a son.

[1] Takagi started writing love stories and made her fiction debut in 1980 with Sono hosoki michi (That Narrow Road).

[1] Hikari idaku tomo yo, a story about the emotional lives of two high school girls, won the 90th Akutagawa Prize.

[1] Her 1994 novel Tsuta moe (蔦燃) won the inaugural Shimase Award for Love Stories.

[4] Other examples include the 1993 novel Hyōen (氷炎), about two former lovers reunited when their daughters from their current marriages become injured in the same car accident,[5] the 1999 novel Tōkō no ki (透光の樹, Translucent Tree), which won the 35th Tanizaki Prize and was later translated into English by Deborah Stuhr Iwabuchi,[6] and the 2000 novel Hyakunen no yogen (百年の預言), about two lovers who find piece of music containing a hidden code that will help Romania achieve political freedom.