Here is a brief synopsis of Fruits Basket or Furuba by Natsuki Takaya.
A young girl by the name of Tohru Honda ends up living in a tent after
the death of her mother. The forest where her tent is camped happens to be owned
by the Sohma family. Some members of the family find out about her housing
situation and make an offer for her to stay with them. She graciously accepts her
lodgings in exchange for her doing the housework and cooking.
Come to find out, the Sohma family is under a curse. They members are
possessed by the vengeful spirits of the Chinese Zodiac. Every time a member is
hugged by the opposite sex, they transform into their respective animal, or if
they become weakened. As a result there are some
bizarre and humorous situations. But the curse also hold cruelty and heartbreak. The family realize more and
more everyday, just how lucky they are to have the kind and generous Tohru in
their lives. Will Tohru be able to heal the hearts of the Sohma family?