Haruhi left the host club for 3 months to go be an exchange student. Little did the Host club know how much she would change. Haruhi comes back and her gender is forced to be revealed to the school after an unknown growth spurt. Everyone accepted it and know she is the 'sister' type. But she's changed, gotten taller (by an inch), smarter (if that's possible), and she's become a lot more unpredictable. How will the host club take this new girl ?