The Qwaser of Stigmata is an ongoing action manga series authored by Hiroyuki Yoshino featuring art by Kenetsu Satō. It is notable for its violence, fanservice, and the use of breast milk as a central plot device. The manga is serialized in the seinen/shōnen manga magazine Monthly Champion Red. A 24-episode anime television series adaptation was broadcast in heavily censored form and streamed uncensored on Biglobe. The anime received an OVA adaptation called The Qwaser of Stigmata : Portrait of the Empress based on chapter 16 bundled with the tenth volume to be shipped on October 20, 2010. On December 26, 2010, JBook announced that a second season was green-lit. The second season was produced under the title The Qwaser of Stigmata II, airing as 12 episodes between April and June 2011.
On July 1, 2012, Sentai Filmworks had announced that they had licensed both seasons and OVA of The Qwaser of Stigmata for digital distribution and home video release in the U.S., along with multiple other series'. No firm date has been set as to when these will occur.