Festival Ms. Sign (文化祭のカンバン娘 Bunkamatsuri no kanban musume, Kanban girl in school festival) is a Traitless enemy that appears in A Cultured Festival and Infernal Tower.
Acts essentially like Ms. Sign, just with a different look and somewhat stronger with less health and a lot less knockbacks. Pretty much a ranged peon stat-wise, though.
Strategy
Treat this enemy like Ms. Sign, any of the Normal Cats will make quick work of it.