Misumi Kubo withdrew from junior college and worked for an advertising company before turning freelance as a writer and editor. She is the author of seven novels. She won the R-18 Literature Prize in 2009 for the short story that became the first chapter of So We Look to the Sky, her debut novel, which won the Yamamoto Shūgorō Prize, placed second in the voting for the Japan Booksellers' Award, and was a runaway bestseller. Her next novel, Stray Whale on a Sunny Day, won the Futaro Yamada Prize, and in 2018, Staring at Our Hands was shortlisted for the Naoki Prize. She lives in Japan.