After Denji forms a contract with Pochita, his heart is fused with Pochita, a chainsaw cord forms in the middle of his sternum and he regains his lost organs along with having a muscular build. He wears the standard Public Safety Devil Hunter uniform, consisting of a white shirt, tie, and slacks. He wore the uniform carelessly, his shirt wrinkled and sleeves rolled up. Denji is both brash and naïve as a result of being unable to have a formal education and socialize due to living in poverty.