Savage Garden

TENMANGA SUM:
In 18th century England, Gabriel, an orphan girl from a fallen noble family befriended a young man named Jeremy, who was rumored to be an illegitimate child of a nobleman. After an incident occurred, resulting in his tragic death, Gabriel must impersonate her friend Jeremy, taking his place at an all boys academy for nobles, a place that may seem like heaven to others, but really hides a harshness which she would never have imagined.

LINK:
http://www.tenmanga.com/book/SAVAGE+GARDEN.
http://www.mangahere.com/manga/savage_garden/