나가사와 마사미
is a Japanese shōjo manga artist. She writes mainly for "Margaret", where she debuted in 1979 at age 15 with "Maggie". In 1993, her high school romance "Pops" was adapted as an OVA by Madhouse. She received the 2000 Shogakukan Manga Award for shōjo for "Bara-Iro no Ashita" ("Rose-Colored Tomorrow"), and the 2009 Kodansha Manga Award for shōjo for "Kiyoku Yawaku". In 2013, "Kiyoku Yawaku" was adapted into a live-action film starring Masami Nagasawa and Masaki Okada. Ikuemi drew the cover art for Kazuyoshi Saito's October 2013 single "Kagerō", which was the film's theme song.