Sumomo Yumeka

is a Japanese manga artist, who also writes as . She writes in a variety of demographics, publishing yaoi manga as Sumomo Yumeka and seinen manga as Mizu Sahara. She is best known in the west for The Day I Became a Butterfly and Same Cell Organism, both under the Yumeka byline, and the manga adaptation of Voices of a Distant Star under Mizu Sahara. Her series My Girl is being adapted as a live-action television series which began broadcasting in October 2009.

Works As Sumomo Yumeka Kokoro Kikai Soshite Hibi Koishiteku Soshite Koi ga Hajimaru by Kei Tsukimura (illustrator only) Natsukashi Machi no Rozione Dousabou Seibutsu (published in English by Digital Manga Publishing as Same Cell Organism) Chou ni Naru Hi (published in English by Digital Manga Publishing as The Day I Became a Butterfly) Tengusin (published in English by Aurora Publishing as Tengu-Jin) Nemunoki no Geshukusou Kon no Ki Konoha Kimi wa Boku no Taiyou Hate ni Aru Kimi Kaze Shinshutsu Shita The Snake and the Boy (Mitoshōnen) Boku wa Sakana

As Mizu Sahara Basu Hashiru (includes a series of shorts under the title Nanairo Sekai) My Girl Hoshi no Koe (written by Makoto Shinkai, illustrator only, published in English by Tokyopop as Voices of a Distant Star) Kumo no Mukou, Yakusoku no Basho (written Makoto Shinkai, illustrator only) Watashitachi no Shiawase na Jikan (adaption of novel by Ji-Young Gong) Tetsugaku Letra Itsuya-san Okashiratsuki