Waking up as Jaune Arc won't be a problem if I survive a school of reckless teenage superheroes, understand the Arc family before they find me, and stop a world-ending plot from an immortal mistress. It seems easy enough like checkers.
A chance meeting due to Kushiel bringing her daughter to her project leads to Sariel breaking two girls out of hell, and Felicity Chambers comes to Crossroads with a very different helper.
Disclaimer: While Alma Mater should make sense without having read canon Heretical Edge, reading it without reading canon first is not advised.
Being surprised by the twists and reveals is a key part of the Heretical Edge experience, and Alma Mater spoils more twists than most Peggy Sue fics, and faster...