Miasma is a Bitch [A Saints Magic Is Omnipotent]

Ravenna, a young college student, was on her way to meet friends when the world tore open beneath her feet.

She falls from the sky into a forest filled with monsters, dangerous smoke, and magic she never asked for. Alone and injured, she survives by instinct - and by a strange ability to absorb the very magic that sustains this world.

In the kingdom of Salutania, whispers spread of a Saint summoned from another world to cleanse the rising dark magic. And Ravenna was never meant to be part of that ritual, she was mere collateral damage.

Determined to return home Ravenna sets her sights on the capital and the mages responsible for the "kidnapping". What she does not expect is to be discovered on the northern road by Duke Adrian Valcrest, commander of the First Order. He was charming, noble and far too observant for her comfort.

As Ravenna searches for a way back to her world, she becomes entangled in court politics, dangerous magic, and a man who refuses to let her go.

She only wants to go home.
The problem is... the closer she gets to answers, the more this world begins to claim her.
And the duke might just be the most dangerous temptation of all.

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OR:
A european uni student gets isekai'd, discovers she's basically a walking magical battery, fights smoke monsters, wants to go home... and accidentally falls in love instead.