[8] Motoya's novel Ikiteru dake de ai (Love at Least), about an unemployed and apparently depressed woman's relationship with her boyfriend, was published in 2006 by Shinchosha.
[10] Motoya's 2009 novel Ano ko no kangaeru koto wa hen (That Girl's Got Some Strange Ideas) was nominated for the 141st Akutagawa Prize.
[9] She was nominated a third time for her 2011 novel Nurui doku (Warm Poison), about a woman who has a relationship with a pathological liar claiming to be a former high school classmate.
[15] In 2016, on her fourth nomination, Motoya won the 154th Akutagawa Prize for her story Irui konin tan (Tales of Marriage to a Different Sort), in which a wife discovers that she and her husband look more and more alike as they grow older together.
[23] An English version of her play Vengeance can Wait, translated by Kyoko Yoshida and Andy Bragen, premiered in 2008 at the Best of Boroughs Festival in New York City.
[24] In 2009 her play Shiawase saiko arigatō maji de, about a woman who enters a couple's home and declares that she is the husband's mistress, won the 53rd Kishida Kunio Drama Award.
[25] A film adaptation of Ranbō to taiki (Vengeance Can Wait), directed by Masanori Tominaga and starring Tadanobu Asano, Minami Hinase, and Eiko Koike, premiered in Japan the next year.