Read manga: Sexy Guardian

manga
Summary:

Juuna's uncle gets her to enroll in the school where he's principal. The only problem is that it's an all boys school! With all those rabid guys around, Juuna needs someone to protect her. In comes Shibuki to be her bodyguard...but Juuna wants him to do more to her body than just guard it!The side story of volume 2 is called 'Sexy Guardian Returns'.