|Affiliation|| Free Cities Alliance, Lion Mind|
|Level limit|| 17|
|Appeared in|| Rance 4.1, Rance Quest|
|Mentioned in|| Rance VI|
|Cameoed in||Rance 5D|
Sillbarrel is an individual originally from the Free Cities Alliance, working as the chief of dorms of Happiness Pharmaceutical. Her ugliness is legendary and she is actually pretty infamous for it. Rance considers her his greatest foe, due to the great fear it inspires on him to just look at her.
In Rance Quest, she became the leader of Lion Mind after Alkanese left the group, renaming it to "Cheetah Mind". Crook determined that her ugliness was so great that she could potentially destabilize the System due to the impact she causes on other people, deeming her as a Balance Breaker and sealing her as a result.