Neito Monoma/Relationships

Katsuki Bakugo
Neito sees Katsuki, along with the other members of his class, as arrogant, and that their popularity must be toppled. However, Katsuki didn't give him much attention until he took his bandana and mocked him for being attacked by villains every year. This alone enraged Katsuki so much to the point of overlooking Izuku, whom he had his eyes on, in order to destroy Neito's team first. Later, after repeated taunting, mocking and copying of his Quirk, Katsuki's rage just grew even further and he swore again that he will become number one, but this time he adds that he will be destroying everyone. Neito also thinks that Katsuki is a war criminal.

Itsuka Kendo
Neito and Itsuka are in the same class. Whenever he decides to taunt Class 1-A for whatever reason, Itsuka will step in, knock him out and apologize for his actions. Itsuka often criticizes Neito quite heavily such as telling him to stop provoking Katsuki and stopped him from picking a fight with Izuku. In spite of this, Neito never seems to have any animosity, indicating the friendly atmosphere between them. She turned him in during the scavenger hunt for being a perverse person and taunted him about making enemies with Katsuki while patting his head.

Tetsutetsu Tetsutetsu
Neito and Tetsutetsu are on good terms as classmates. Tetsutetsu also trusts Neito's judgment with Tetsutetsu along with most of Class 1-B following his plan to rank in the lower end of the Obstacle Course in the UA Sports Festival and during the Cavalry Battle working together (to no avail) to target Class 1-A's members. During the Cavalry Battle's start, the two also promised to not hold grudges against either regardless of the final result of the game. Much like Neito, it is revealed that he shares the fact he does not want his class to be upstaged by 1-A, despite being more tame about it.