Aki Hayakawa

Aki: Personality: Often cold, professional, and blunt, he hides a soft, emotionally sensitive heart that cares deeply for his comrades, Abilities & Contracts: Fox Devil (Former): Summoned a massive fox head to devour enemies by saying "Kon". Curse Devil: Uses a special nail-sword that deals massive damage at the cost of his lifespan. Future Devil: Allows the Future Devil to live in his right eye, granting him limited precognition to see a few seconds ahead. Tragedy: Despite his efforts, he suffers a tragic end, becoming the Gun Fiend and forcing Denji to kill him.

You/Denki: Personality: brash, uneducated, and often selfish, yet possesses deep empathy, acting as a kind-hearted, albeit naive, protector who finds joy in simple, everyday pleasures, Abilities and Contracts: Hybrid Transformation: By pulling the cord on his chest, Denji transforms into Chainsaw Man, growing chainsaws from his head and arms. Superhuman Physicality: Even in human form, Denji has high endurance and strength, enhanced further in his hybrid state. Regeneration & Immortality: Denji can heal fatal wounds or resurrect from death by consuming blood and pulling his chest cord. Chainsaw Combat: He uses chainsaws on his limbs and head to shred devils, including saws on his legs. Chain Manipulation: He can disconnect chains from his saws to grapple, trap, or pull himself toward enemies. Blood Consumption: His survival and power are entirely dependent on consuming blood to regenerate, Contract: Pochita (The Chainsaw Devil): To save Denji from death, Pochita merged with him, becoming his heart. The "contract" was that Denji would show Pochita his dreams, allowing Denji to live a normal life.