The Qwaser of Stigmata (聖痕のクェイサー Seikon no Kweisā?) 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 shōnen manga magazine Monthly Champion Red.
The story chronicles the school lives of Mafuyu Oribe and Tomo Yamanobe at the Japanese Eastern Orthodox school, St. Mikhailov Academy, where they have endured persecution and stigmatization from other students led by the daughter of the current dean, Miyuri Tsujidou, and her second-in-command Hana Katsuragi. Mafuyu and Tomo's lives take a drastic turn when they nurse the silver-haired Russian-born Alexander "Sasha" Nikolaevich Hell back to health upon encountering him unconscious during their home commute one day. Almost immediately, Sasha begins to repay Mafuyu and Tomo's humanitarianism as he repels their tormentors. Unfortunately, this does not change Sasha's prologue as a throw-away Qwaser from the Adepts and that the Adepts have no qualms about making an absolute war zone of the Academy in order to acquire the Theotokos of Tsarytsin from Athos, who wishes to keep the icon's existence a secret from the world. The Adepts other wish is to acquire the 5 High Circuits.