Viser

Viser (バイサー, Baisā) was a Stray Devil who was confronted by Rias Gremory and her peerage. Viser possessed a ruthless and violent personality, displaying an extreme obsession with combat and bloodshed. She openly expressed pleasure in battle and showed little regard for her opponents beyond viewing them as targets for her aggression. In the anime adaptation, Viser was portrayed as highly provocative and unrestrained, using shock value and intimidation to unnerve her enemies during combat. Her behavior emphasized her unstable and dangerous nature as a Stray Devil, ultimately contributing to her defeat by Rias and her group.