Shota Aizawa/Relationships

Emi Fukukado
He has known Ms. Joke for a long time; their workplaces were once close to each other and as a result whenever there was trouble, they would assist each other. Ms. Joke likes him and enjoys poking fun at him, and though he seems to find her jokes and general disposition annoying, he still tolerance her presence and shows a willingness to work with her.

Toshinori Yagi
Due to their contrasting personalities and the way Shota antagonized Izuku on the first day of school, he and All Might initially did not get along. Toshinori disapproves of Shota's overly-strict teaching methods while Shota dislikes the favoritism that Toshinori shows Izuku.

However, after Toshinori defeats All for One and loses One for All, Shota tries to reach out to him by inviting him to get a drink sometime, hinting that the two have found a level of understanding. Toshinori kindly turned him down but offered him one after they met the Bakugo Family.

Izuku Midoriya
When Shota first meets Midoriya, he had zero faith in Izuku's ability to be a hero and intended to expel him on the first day of school. However, when Izuku proves his worth to Shota, he acknowledges that Izuku has the potential to become a Hero if he can learn to control his Quirk. As the series goes on, Shota continues to regard Izuku as a "problem child" due to Izuku's habit of causing trouble and getting himself into danger. However, Shota also shows faith in Izuku's potential and is amazed at his growing abilities.

Present Mic
Shota and Present Mic used to be classmates and good friends for a very long time, Present Mic even came up with the name eraser head. They have contrasting personalities, with Shota being calm and composed and Mic being very excitable and energetic, but they still get along very well, unlike with All Might.

Katsuki Bakugo
Like with Izuku, Shota is rude to Katsuki due to his rude and violent behavior. He tends to look over Katsuki more than any other student due to his violent and irresponsible behavior. However, he acknowledges he has the qualities of a hero when asked by the press about his "villain like" behavior.

Vlad King
They are both fellow pro heroes and homeroom teachers of the Department of Heroes for their respective classes. As Sekijiro views Class 1-A as his rivals, this rivalry is extended toward Aizawa, with Sekijiro acting out competitively towards him. Despite this rivalry, Sekijiro knows when to cooperate with Aizawa during serious moments. This was shown in their meeting with the media where he was worried that Aizawa would lose his temper though was surprised when the latter kept calm and agreed with the heckling.