Kazuma Sohma is depicted as a peaceful and kind man. He is like a father to Kyo as he alone in the sohma clan understands how Kyo feels. Kazuma's grandfather was possessed by the cat spirit and when he was young, he refused the sweets that his grandfather gave to him, saying that it was cursed. After Kyo's mother died, Kazuma took Kyo in at first to atone his mistake for his grandfather. However soon to grow to love Kyo and treat him like a son. Kazuma Sohma is a master of martial arts and taught Kyo along with the Yuki, Hatshuharu and Kagura how to fight.
Kazuma Sohma (草摩 籍真, Sōma Kazuma) is a master of martial arts who runs a dojo near the Sohma family compound, where he teaches several of the younger Sohmas, including Kyo, Kagura, Yuki, and Hatsuharu. He is usually addressed as shishou, meaning "master." In an author's note, Takaya said that although she draws him young, his age is "almost 40." Takaya also claimed he is "clumsy with his hands and has no sense of flavor," and he is depicted as being so bad at cooking, he does not know how to prepare tea. His daily routine is taken care of by his assistant at the dojo, Kunimitsu Tomoda.
When he was a child, during their only meeting, Kazuma was mean to his grandfather simply because his grandfather was cursed by the cat. To make amends, after Kyo's mother died, he took in and raised Kyo, the current cat, as his foster son, and has come to think of him as his own son. Kazuma thinks well of Tohru and hopes her love for Kyo is sincere, and not based on pity like his grandmother's was towards his grandfather; both to test Tohru's feelings and to show Kyo he can be accepted despite his curse, Kazuma forces Kyo to show Tohru his true form. After Rin is hospitalized the second time during the series, he takes her in to recouperate so that she does not have to live inside the family compound, which he has done before. In the final chapter, Saki Hanajima is working at Kazuma's dojo and it is implied they are in a relationship.