Tohru is quite surprised to see Yuki, Shigure, and Kyo turn into animals. While still in their animal forms, they tell her about the Sohma Family Curse. Whenever a member of the Sohma family is hugged by a member of the opposite sex, they turn into animals from the Chinese Zodiac. Later on at school, Yuki confronts Tohru and tells her that her memory may have to be erased because she found out the family secret. When they return home, Shigure informs them of Akito's decision: Tohru can stay at the house and won't have her memories erased as long as she doesn't tell anybody about the family secret.

Tohru is back living with the Sohmas. Tohru's friends just get wind of it and decide to see if the Sohmas are taking good care of Tohru. Will they be able to keep the Sohma family curse under wraps while Uo and Hana stay over?

Tohru's class goes on an endurance run. In the middle of the run, a white-haired boy, not much younger than Yuki, interrupts and challenges Kyo to a fight. The boy is also a member of the Sohma clan. As they fight, Yuki feels faint. What will Tohru do now? And which zodiac member is this boy?

It's been a year since Tohru's mom passed away, and the gang visits her grave. Uo and Hana speculate on whom Tohru will fall in love with. Then Tohru discovers Momiji in the building she works in. What is he doing there? And where are Momiji's parents?

Someone steals Tohru's purse, and it looks like another zodiac member. He's Hiro Sohma and he's very jealous of Tohru and Kisa.