makima

Personality
On the surface, Makima seems to be a kind, gentle, social and friendly woman who is almost seen wearing a smile on her face the entire time and acts relaxed and confident even during a crisis, speaking in a professional tone to her workers. As her natural appearance is nearly identical to that of a human, she avoids disclosing her Devil nature to most of her underlings and spends much of the series posing as a human contracted to a Devil rather than a Devil herself. However, this is only a façade that she uses to fulfill her ultimate goal.Relationships
Pochita
The Chainsaw Devil is perhaps the only individual Makima has ever shown genuine interest or affection towards. Furthermore, Pochita is one of the only people who she does not believe to be beneath her due to his legendary status and power.
So deep was Makima's admiration for Pochita that she devised an elaborate plan to break Pochita's contract with Denji by psychologically breaking Denji's spirit and force him to give up on his dreams. She planned to defeat Chainsaw Man to have her submit to him, but Makima admitted that she would be ok if her plan failed and she was consumed by Pochita, viewing it as an honor.
Denji
Initially, Makima appeared to be extremely generous towards Denji, giving him a job as a Devil Hunter, letting him live with Power and Aki to create a familial bond with them, and allowing him to have some limited freedom. She would often grant Denji's wishes to help him achieve his goals and desires.
However, that was all an elaborate plan to give Denji happiness only to later plunge him into despair in order to break the contract Denji had made with Pochita and give Pochita control of his body again. Makima had never once held any sort of affection or sentiment towards Denji, and had no interest of him as she never memorized Denji's scent.
Aki Hayakawa
Makima appeared to respect Aki's judgement and abilities, assigning him to take care of Denji and Power in his apartment because she trusted him more than anyone else.