Reze, also known as the Bomb Devil Hybrid, is a pivotal character in the Chainsaw Man series. Initially appearing as a charming and enigmatic girl, Reze quickly becomes a significant figure as her true identity and intentions are revealed. Working as a Russian spy, Reze is tasked with obtaining the Chainsaw Man's heart. Despite her role as an antagonist, her complex character and relationship with the protagonist, Denji, add layers of emotional depth to the storyline. Her dual nature as both a human and a devil makes her a formidable and intriguing character.