Kyoka Jiro/Relationships

Denki Kaminari
The two heroes-in-training were paired together during the Battle Trial, and the Unforeseen Simulation Joint, showing to working well together. They also studied together under Momo's tutelage.

Though the two seem to work well together, they tend to argue quite a lot. Even more likely, Kyoka will tell Denki rude things that will put his mood down. However, Kyoka happens to enjoy Denki's brainless state, finding it uncontrollably funny.

Interestingly, when Denki finds out about her music hobby, and compliments her, encouraging her to embrace her hobbies publicly, Kyoka gets flustered by his praise and rejects his encouragement.

Momo Yaoyorozu
Kyoka and Momo appear to be close friends with each other.

During the Unforeseen Simulation Joint Arc, the two fought villains together with Denki, proving to work well as a team. During the End of Term Test Arc, Momo helped Kyoka to study for the class midterms.

When the class split up to go shopping for the training camp, Momo and Kyoka paired up and went off shopping together. She also has proven to be somewhat defensive of Momo, as she hit Hanta for upsetting her with his distasteful comment about her Quirk.

Koji Koda
Kyoka and Koji know the functions of the other's Quirk, and had proven to fight together efficiently. When Koji was afraid to use his quirk by talking to the bugs, Kyoka comforted him by showing him that there are more factors to become a hero, encouraging him to defeat Present Mic in order to pass the test.

Toru Hagakure
They appear to good friends as they are often seen talking. During the Sports Festival, she was put off by Toru's desire to act as a cheerleader after they were tricked by Denki and Minoru.

Toru was also thankful for Kyoka halting Minoru's attempted peeping on the locker room.