Why is kyo sohma a monster?

Kyo Sohma is often considered a "monster" in the context of the anime and manga "Fruits Basket" because he transforms into a cat when hugged by someone of the opposite sex, a unique curse within the Sohma family. This curse stems from the family's connection to the Chinese Zodiac, where Kyo is associated with the cat, which is often seen as an outsider or misunderstood. His feelings of isolation and anger regarding his transformation contribute to his internal struggles, making him a complex character grappling with his identity and the expectations placed upon him.