I'm your sister, of course i'll protect you!

Her luck really was a fascinating thing. From having the gods ask him a favour, to now being reborn as Violet Potter, she is tasked with saving the 'core' world before it is destroyed, bringing the space time continuum with it. Of course, that was all of minor important, all that she cared for was locking after her sister from the suffering the world caused her. MOD! Powerful Harry