Mikazuki Sohma is Yuki's twin sister. She is the zodiac keeper and the protecter of those in the family who are cursed with the Ancient Zodiac Curse. When she comes back home with her cousin Kyo she meets a girl name Tohru Honda who soon enough finds out about the curse. Mikazuki knows that Tohru will keep The Sohma's Family Secret but does she trust her enough to keep her own deep dark secret... Disclaimer - I do not own anything about Fruits Basket I only own Mikazuki