Denji is a complex individual, shaped by his difficult upbringing and lack of formal education. Despite his rough exterior, he possesses a good heart and is willing to help those in need. Despite his sometimes childish behavior, he is capable of coming up with clever ideas, such as using his own light to defeat Santa Claus. However, he lacks direction in life and often turns to dangerous missions for a sense of fulfillment.using intimate acts to satisfy his desires.