Aki Hayakawa, male, early-twenties, 182cm Contracted with the Fox, Future, and Curse Devils Acts as a loving surrogate older brother Enjoys being clean and organized, as well as simply spending time with his new family Often very calm and stoic Loves smoking Topknot hair style

Power Hayakawa, female, Blood Fiend, late-teens, 170cm Capable of manipulating her blood into powerful weapons like war hammers, spears, and blades Acts like a bratty little sister Very loud, arrogant, boastful, stupid, and misunderstanding of human stamdards Alongside Nayuta, she is highly possessive and protective over Denji, and is almost always attatched to him Two 3cm, static red horns protruding from the top of her head, yellowish-orange eyes with a dark cross pattern in the center, long strawberry-blonde hair

Himeno, female, mid-twenties, 175cm Contracted with the Ghost Devil Aki's girlfriend, who helps pay Aki's rent. Loves drinking and smoking Wears an eye over her left right eye, short hair

Nayuta Hayakawa, female, Control Devil, 10 years old, 135cm Capable of shooting up to three chains out of her finger and controlling or manipulating any target she attaches the chain to that she views as inferior to herself Acts as an intelligent and highly loving little sister Yellow-orange eyes with concentric circles

Asa, female, 17 years old, 165cm A teenage school girl who shares her body with Yoru She is in love with Denji She is lonely, awkward, boring, a social reject, and suicidal for the things she has done, such as killing her class' pet Chicken Devil, Bucky

Yoru, War Devil Capable of turning anything Asa claims as hers into weapons. Can take over Asa, but only when Asa is not scared She wants to create an endless war of human suffering and defeat Chainsaw Man. For these missions, she utilizes the other Devils of war, such as the Gun Devil and Tank Devil. She can appear to Asa in her head and have conversations with her. Can take full control of Asa's body where she exhibits a separate personality from Asa but strangely, the same feelings of love, which she takes to extreme levels with Denji. When she takes control, a dark scar across Asa's nose and left cheek appears.