Tetsutetsu Tetsutetsu/Relationships

Itsuka Kendo
Itsuka decided to let Tetsutetsu's team participate in the tournament event of the Sports Festival as her replacement, feeling that they deserved the opportunity more. They get along well as Tetsutetsu followed her deduction of villain being the cause of danger and they went after Mustard. When Tetsutetsu voiced that he will protect the class, Itsuka smiled and agreed with his declaration, showing she respects him.

Tetsutetsu also seems to value Itsuka's well being, as he rushed to her aid to give her a gas mask and protect her from the villains. The two appear to be on good terms, and unlike with Neito, the two have not been seen arguing or fighting or criticizing each other, indicating that their relationship is calmer than the one she has with Neito.

Tetsutetsu has a very good opinion of Itsuka, praised her strategic capacity, her cheerful personality and for being a positive influence for class 1-B, and the reason why the class hasn't descended into being Monoma-like 1-A haters. During Joint Training Exercise, he supported and encouraged her constantly during her battle against Momo.

Neito Monoma
Tetsutetsu and Neito appear to be on friendly terms, and can often be seen together. Although he didn't go along with Neito's plan to throw the qualifier in the U.A. Sports Festival, they agreed there would be no hard feelings in the Cavalry Battle.

Ibara Shiozaki
Tetsutetsu and Ibara appear to be friends. The two teamed up in the Cavalry Battle and partnered up in the inter-class test of courage during the training camp. Tetsutetsu cares for Ibara's well being and made sure she was safe before he went to confront Mustard.

Juzo Honenuki
Tetsutetsu and Juzo appear to be friends. The two teamed up in the Cavalry Battle and Juzo wished him and Ibara luck when they were chosen to participate in the tournament event of the Sports Festival.

Later, they teamed up again during Round 3 of the Joint Training Exercise against Class 1-A team. Right after the third set begins, Tetsutetsu begins tearing through entire structures in his search for the other team. While Sen and Pony express their disagreement with Tetsutetsu's "strategy", Juzo remarks that Tetsutetsu's approach is actually playing to their team's strengths.

During the match, Juzo helps Tetsutetsu in his fight against Shoto, and saves him for being melted by Shoto's fire.

Eijiro Kirishima
Tetsutetsu and Eijiro are constantly compared in the U.A. Sports Festival because of their Quirks, and eventually fight to a draw in the finals. This creates a fierce rivalry between the two that will not subside until Eijiro defeats Tetsutetsu in an arm wrestling match. Afterwards, Eijiro offers his hand and tells Tetsutetsu he put up a great fight. Tetsutetsu accepts the handshake and gains a new respect for Eijiro.

Tetsutetsu cheers for Eijiro during his battle with Katsuki and is upset when he loses. They also intern together (By luck) with Fourth Kind, and appear to be happy to do so together.

Katsuki Bakugo
Tetsutetsu despises Katsuki's arrogance. He has stated a desire to want to defeat Katsuki, but has not been presented with an opportunity to do so. When Eijiro fought Katsuki during the U.A. Sports Festival Finals, Tetsutetsu rooted for Eijiro to beat him.