Complex sentence: Kyoko Mizuki is the pen name of Keiko Nagita (恵子 名木田, born on November 28,1949) is a shōjo mangaka who is best-known for being the writer of the manga and anime series Candy Candy.
Split into simpler sentences: Kyoko Mizuki is one of the pen names of Keiko Nagita (恵子 名木田, born on November 28,1949). She is a Japanese writer who is best-known for being the writer of the manga and anime series Candy Candy.