Hatori Sohma/Relationships

Mayuko Shiraki
Hatori met Mayu through Kana, as they are best friends. Because of their common interest in books, Hatori became good friends with Mayu and seemed to like her in his own way. They also bonded over deeply loving Kana and having been changed by her. Unbeknownst to Hatori, Mayu had loved him ever since she met him, but knowing that he and Kana were a couple despite not officially announcing it, suppressed her own feelings and wished for their happiness.

When Hatori and Kana's relationship was destroyed, Mayu didn't meet with Hatori for two years, as she didn't want to betray him or Kana. However, after they end up reuniting after two years thanks to Shigure, it is proven that they still get along well. For example, when Mayu once mentioned that seeing Hatori in a suit made her sweat, he made sure to not wear one the next time they met in order to not trouble her. He also reprimands Shigure for troubling Mayu and threatened to incise him if he did it again. Hatori has mentioned several times that he can't figure out Mayu and that she is always saying nonsensical things. Despite that, Hatori is genuinely touched and appreciates how much Mayu cares about him and how she cried in his stead, which "lightened his heart a little," and thus becomes interested in her and takes the initiative to get to know her better; finally ready to let someone in his heart again.

Throughout the series, they begin talking more and it is mentioned that Hatori and Mayu regularly keep in touch with one another. Towards the end, Hatori begins dating Mayu, and they are seen to be a very loving couple who openly anticipates traveling together, are very comfortable and open in one another's presences, and are able to genuinely have fun together; with Hatori barely being able to contain his laughter when Mayu makes some strange remarks.

In Fruits Basket Another, Hatori is married to Mayu, and they have one daughter named Kinu Sohma together.

Kinu Sohma
Although there haven't been in any on-screen interactions with them, Hatori is known to be a very loving father towards his daughter Kinu. However, it is also implied that Hatori is a father who constantly worries about his daughter, as it is mentioned that Hatori would "go crazy" if Kinu continued talking about wanting a job that doesn't require much effort.

Tohru Honda
Hatori was initially very cold and distant towards Tohru. He is somewhat concerned about Tohru knowing the Sohma family secret, tries to convince her to leave the Shigure's house, and stay away from the Sohma family. However, it is later revealed that Hatori only "threatened" her because he didn't want to erase her memories or for her to suffer in the same way as his ex-fiancé Kana. Tohru is happy to realize that Hatori is, in fact, a very kind-hearted and caring man. Tohru also ends up being the second non-Cursed person to witness Hatori's Zodiac form. Tohru's reaction to seeing Hatori's zodiac animal, as well as her answering "spring comes" when being asked to what happens snow when melts, reminds Hatori of Kana, and Tohru's kindness and resemblance to Kana makes Hatori realize that despite how hard his life may be, it will get better.

After this, Hatori develops a fondness and soft spot for Tohru, as he decides to watch over Tohru from making the same mistakes he made, denying that he got the short-end of the stick in regards to his situation with Kana because he could meet Tohru because of it, and makes sure that she is always happy, healthy, and not feeling lonely.

Kana Sohma
Hatori was initially indifferent to Kana, the newly-appointed assistant in his office, but when she asked him what snow turned to once it melted, Hatori, thinking she was making fun of him, replied the most obvious answer: water. But Kana exclaimed that he was wrong and that it turned into spring. After this, Hatori was drawn to Kana's innocent cheerfulness and described her as a spring that melted the "snow" of his heart. They thereafter quickly fell in love, though Hatori was hesitant to hold her in his arms and let her in into his heart because of his curse. When Hatori accidentally revealed his Zodiac form to Kana, she still accepted him and promised to always stay by his side, since being with him brought her happiness. Upon hearing this and feeling like he had been saved and forgiven for something for the first time in his life, Hatori broke down in tears. They then began dating and became a very loving and affectionate couple, and Hatori describes that their two months as a couple was worth hundreds of years of happiness.

However, things took a turn for the worse when Hatori and Kana begged for Akito to let them marry. Akito was enraged and hurt Hatori's eyes, and because of Akito's harsh words and the trauma derived from the incident itself, Kana began to truly believe that Hatori's injury really was her fault. Over time, Kana's pain and guilt began to consume her, she couldn't even look at Hatori without crying and she became immensely depressed. Hatori was then forced to erase Kana's memories in order for her to be happy again, and selflessly wished for her to become happy even if it was without him.

Over the course of two years, Hatori refused to seek his own happiness and still had Kana close in his heart; even always keeping a picture of her in his office. At the same time, he knew they could never go back to the way they were and refrained from interacting with her. However, Hatori begins to move on from Kana after finding out how she had married another man, as well as after meeting Tohru and Mayuko. Hatori is genuinely happy that Kana was finally able to find her own happiness.

Akito Sohma
Hatori shares a rather complicated relationship with Akito. He serves as her personal doctor and stays by her side quite often, but he seems to have some degree of affection towards her considering he knows the truth about her gender and background. Even though Akito almost blinded one of his eyes, causing Kana to become sick, and forced him to erase the memories of his loved one, Hatori never blamed Akito, though this is more because of the curse. He also feels trapped by the curse, and to an extent, how he is expected to always be by Akito's side. At the same time, Hatori doesn't seem to fear Akito and treats her somewhat like a younger sister figure, as he doesn't hesitate to comfort Akito when she needs to be, calm her down when he throws tantrums, and even sometimes subtly "lecturing" her of what is right and wrong. Towards the end, it is unknown how their relationship is, but Akito decided to give Hatori and the Zodiacs their freedom.

Shigure Sohma
Being the same age and both being members of the Zodiac, Hatori has known Shigure for his entire life and grew up alongside him. Despite not acknowledging it himself, Hatori is best friends with Shigure and is one of the few people who knows about Shigure's true colors but still remains friends with him. Despite that, Hatori is sometimes cold towards Shigure and dislikes the way he stirs up drama, causes trouble for people and plays with their insecurities in order to break the curse, and thus sometimes threatens him and lectures him for being annoying and using the wrong methods. However, Hatori can't seem to fully blame Shigure, as he acknowledges that Shigure is putting more effort in breaking free than he himself has ever done. Despite their complicated relationship, Shigure genuinely cares about Hatori's well-being which Hatori appreciates, and the fact that they often spend time with one another and can confide almost everything to the opposite party is proof of their strong friendship.

Ayame Sohma
Hatori is also best friends with Ayame as they are the same age and members of the Zodiac, even though Hatori doesn't acknowledge it himself. Even though he is polar opposites with Ayame and is usually exasperated and dumbfounded by his antics, Hatori cares for him greatly and seems to admire him for the traits he lacks. Ayame also admires Hatori and wishes to be like him; this is why Ayame reports every detail of his life to Hatori, and he is the only one who can keep Ayame in check and the only person who Ayame listens to. This dynamic was passed down to their children; Hatori's daughter Kinu, and Ayame's daughter Hibika Sohma.

Momiji Sohma
When Momiji was young, Hatori was forced to erase Momiji's mother's memories of her son. Even though he had no problem in doing so during that time, it eventually came to cause Hatori some guilt. Because of this, due to the lack of adult figures in Momiji's life and feeling responsible for wiping his mother's memories, it is mentioned that Momiji often goes over to Hatori’s for meals and that Hatori often checks up on him as well. Besides this, they seem to be quite close as Momiji is very affectionate with Hatori and Hatori acts like an exasperated parent towards him, and often keeps him in order.

Yuki Sohma
Similarly to Momiji's situation, Hatori was forced to erase the memories of Yuki's first and only friends, which caused the young boy immense grief. Although Hatori had no problem in doing so during that time, he was seen to be sad and guilty for doing it. Because of this, Yuki unconsciously began despising Hatori and blamed him for the incident. Besides this fact, they seem to have a normal, if not sometimes tense, relationship, as Hatori often checks up on him due to his medical issues, and warns him about the circumstances about the Curse and Tohru.

Yuki later apologizes to Hatori for blaming him for his problems, as he had begun to understand that Hatori, too, was hurting by the erasing memories of different people. Hatori was touched by Yuki's kindness and fondly patted him on the head, thus finally reconciling and Hatori developing both a soft spot for him and respect for him.