Nyaako is a fictional character in the manga and anime series Chainsaw Man. Nyaako is Denji's beloved pet cat, who appears in a subplot involving the character Power. Power kidnaps Denji's cat, Nyaako, and uses it as a bargaining chip to manipulate Denji into helping her. Nyaako's presence provides a glimpse into Power's softer side and serves as a catalyst for the development of her relationship with Denji. Nyaako is a symbol of innocence amidst the chaos of the series.