Lore

Shalltear Bloodfallen's Capture Mission

シャルティアの武技使い捕獲任務（死を撒く剣団襲撃）

World & HistoryBattles & Events

Vol. 3, Year 1 after the transfer (about day 10): ordered by Ainz to capture humans who know martial arts or magic, Shalltear used a decoy operation by Sebas and Solution to raid the hideout of the mercenary band "Death Spreading Brigade"; Brain escaped.

Sebas and Solution posed as "a wealthy Imperial heiress and her butler" and spent lavishly at E-Rantel's luxury inn, the "Shining Golden Pavilion," to lure out people with bad intentions
The coachman they hired, Zach, was actually an inside man for the Death Spreading Brigade; Zach was ultimately dissolved and devoured by Solution
The Death Spreading Brigade was a mercenary band of about 70 based in a forest cave about 3 hours' walk from E-Rantel's north gate; it usually worked as bandits, and Brain Unglaus joined it for the chance to cut people down
Shalltear raided the cave with her Vampire Brides; the leader urged his men to fight, but he and his men were easily slaughtered, and everyone except Brain died; the women held captive in the cave were presumably rescued along with Brita
After crossing swords with Shalltear, Brain fell into utter despair and fled through an escape tunnel; he later recovered and helped Climb and others
Outside the cave, Shalltear also fought adventurers who had arrived, then ran into the Black Scripture and was mind-controlled by Kaire's World Item "Ruinous Beauty" (see the other entries for details)