Kyojuro Rengoku/Relationships

Tanjiro Kamado
Kyojuro and Tanjiro mutually respect each other as fellow Demon Slaying Corps members. Kyojuro takes a liking to Tanjiro the second time he meets him, offering to become his mentor from the moment he begins talking to him, which the latter is taken aback by until he sees Kyojuro in battle. Tanjiro is greatly impressed by Kyojuro's swordsmanship and ability to smile on through the pain of fighting. Just before he dies, Kyojuro entrusts his will to Tanjiro, suggesting that he had grown very fond of the young Demon Slayer for the few hours they knew each other for.

Inosuke Hashibira
As with most new people he meets, Inosuke doesn't particularly like Kyojuro when he first meets him. However, when he sees Kyojuro protecting the people on the train and fighting Akaza, he grows to respect Kyojuro's strength and swordsmanship. After Kyojuro's death, Inosuke is the one to pick Tanjiro back up and remind him of the words Kyojuro had shared with them before he died and the fact that the Pillar believed in them.

Akaza
Kyojuro hates Akaza because of their contrasting beliefs; the Upper Moon believes that weak humans just get in the way of others and that their existences are worthless where Kyojuro believes the weak and valuable and should be protected by the strong. Akaza takes a liking to Kyojuro because he can sense that his battle spirit is strong, and offers for him to become a Demon, but Kyojuro says that he would never sacrifice the beauty of humanity for immortality.