Maken-ki! is a Japanese manga series by Hiromitsu Takeda. It was published by Fujimi Shobo's magazine Dragon Age Pure, and later Monthly Dragon Age, after the former magazine ceased publishing. It has been adapted into an anime series by AIC that aired on Tokyo MX in the fall of 2011. It is licensed in North America by Crunchyroll under the title Maken-ki! Battling Venus. Two OVA episodes animated by AIC and Xebec were released at February 29, 2012 and September 25, 2013. They were bundled with the eighth and eleventh volumes of the manga respectively. A second season, titled Maken-ki! Two , was animated by Xebec and aired in 2014.

Jamie Lynn Marchi is an American voice actress, ADR director and script writer. She has provided a number of voices for English-language versions of anime and video games. She is known for her role as Masane Amaha in Witchblade, Mari Ohara in Love Live! Sunshine!!, Mimi in Rin: Daughters of Mnemosyne, Mitsuko Kongo in A Certain Scientific Railgun, Charlotte E. Yeager in Strike Witches, Haruna Saotome in Negima!, Rias Gremory in High School DxD and Panty Anarchy in Panty & Stocking with Garterbelt.