Böse, often called the Immortal Böse, was one of the Seven Sages of Destruction—a group that stood against the Hero of the South. He made it through that initial confrontation, but ultimately fell to the Hero Party.
What set Böse apart was his mastery of defensive barrier magic. He could wrap spaces in grid-like barriers that were practically unbreakable by normal standards. Frieren herself acknowledged his barriers as beyond what any ordinary human could crack. The catch? They weren't totally impervious to raw physical force—a genuinely powerful warrior or hero could chip away at them given enough effort.
Content compiled by AnimeList.moe from publicly available sources.
