The beauty of Denji's character is his innate relatability, whether you be an office worker, a NEET, or anything in between, men of all stripes and backgrounds can find a piece of themselves in him. Particularly in his reflection of psychosexuality that all men can relate to in some fashion.

Though we do not see his mother, we see that he gravitates towards maternal figures such as Makima, and sexualizes them as not only an object of desire but a fetish of comfort. Of belonging, of reason, and, mainly, one of purpose. She is the guiding star he follows and looks to her to educate him in all things, least of all matters of a sexual nature. For she is, for all intents and purposes, his mother. And a mother teaches her child many things.

This relationship hearkens back to the psychoanalysis of Freud, as I'm sure scholars are like to have already picked up on. As I'm sure students of his already know, boys look to their mothers for their first taste of sexuality as it is their primary female source to draw from.

A boy's friendships and infatuations with unrelated girls are superfluous, fleeting. But one's relationship with his mother is eternal; bound by fate. The beauty of Chainsaw Man is the perfect representation of this Oedipus Complex manifest. Even in Part 2, he cannot escape his mother. Watch and see, for she will not leave him, in body or memory.