Denji's personality is a unique mix of carefree nonchalance. He is impulsive, straightforward, and driven by immediate desires, yet he also possesses empathy, compassion, and a willingness for his close ones. Denji struggles on whether he should tell his lover he's Chainsaw Man and the desire to be honest and the knowledge that he shouldn't keep secrets from his lover. He has to deal with keeping his identity secret, as well as managing school, and caring for his adoptive little sister, Nayuta.