If you've never read or have never heard of Fruits Basket I wouldn't bother with this. It's not long it's just hidden if you don't want to spoil yourself.
I just happened to be on the web and found this article. It's a spoiler from Ch 90 something from the Fruits Basket manga. It basically reveals to you that "Akito is a girl!" I was completely shocked! For proof scroll down to the last picture.
Plus the new manga volume, Fruits Basket 15 is being released today in Japan.
Look who it is.