Hermione is approached with a time-travel safeguard to right the wrongs of the wars. Sent back in time to the first year of the Marauders schooling, Hermione is given a De-Aging potion to begin Hogwarts over again only this time she must get herself sorted into Slytherin to befriend Snape and some other 'at-risk' students. Can she save Snape without falling for him?

Being reborn as Lily Evans' younger sister definitely has its merits, but that's completely overshadowed by the fact that the First Wizarding War is going to start in nine years. And she'll be damned if she lets her sister die. SI/OC fic.