Fudemushi Shirube is a supporting character in the manga series 'Tongari Boushi no Atelier' (Witch Hat Atelier). Fudemushi is a wise and gentle creature who assists witches by recording important magical knowledge and events. With a unique appearance resembling a cross between an insect and a writing brush, Fudemushi is responsible for documenting the magical world’s rules. He serves as a guide and companion to the main characters, often providing valuable insights and support throughout their magical journeys.