Isamu/Relationships

Bofoi
Bofoi and Child Emperor are two of the only heroes whose intelligence and reliance on their own technology are their strength, nor do they possess any superhuman attributes or abilities (disregarding Child Emperor's above average human abilities).

Child Emperor appears to be one of the few heroes that Bofoi frequently keeps in contact with, as he has displayed multiple moments of temper tantrums that Child Emperor is used to dealing with. Beyond that however, their relationship appears to be a professional one rather than an intimate one.

Child Emperor and Bofoi have contrasting mindsets due to their differing personalities. Child Emperor has a caring side that makes him think of the well being of others in a given situation, while Bofoi focuses on a more cold and calculating method in order to achieve better results without excessive consequences. This creates a conflict between the two when proposing strategies in a given situation.

Child Emperor seems to hold some level of respect for Bofoi. Upon hearing of him not partaking in the rescue and ambush of the Monster Association, Child Emperor was shocked and attempted to make Bofoi reconsider, though he would find some of Bofoi's methods to be more excessive than it has to be. Bofoi seems to hold Child Emperor to some level of regard, as he expected Child Emperor to analyze the situation better than he did and lectured him about his failings and potential of the Monster Association threat.

He was formerly Bofoi's assistant.

Tatsumaki
Despite his confidence in her power, Child Emperor greatly dislikes Tatsumaki's arrogant and selfish attitude and lack of strategical thinking since she thinks she can take on the entire Monster Association and the Human Monster Garou by herself to the point of berating the needs for a whole group S-class heroes as a support in the operation. While being polite from the outside, he is not above thinking of her as a brat rather than an adult. However, he seems to be very respectful to her as he offered her some orange juice in one of Yusuke Murata's art. 

King
Child Emperor seems to idolize King as he is the 'Strongest man on Earth'. He seems disappointed and down, thinking that King still see and treats him as a child when he realized King decided to take unauthorized action and ditch his plan to infiltrate the Mysterious Beings/Monster Association and went to his designated location immediately.