Tamaki Kotatsu is a Second Class Fire Soldier in the Special Fire Force Company 1, later joining Company 8. Known for her 'Lucky Lecher Lure,' an uncontrollable phenomenon causing accidental perverted situations, she often finds herself in embarrassing predicaments. Tamaki is a skilled combatant who uses 'Nekomata,' a Fire-based ability granting her feline features and enhanced agility. Despite her clumsiness, she is brave and determined, playing a crucial role in battles against the Infernals and the White-Clad. Her character development focuses on overcoming insecurities and proving her worth as a competent firefighter.