Saint’s Mage

I reincarnated after reading an isekai webnovel, but not into it. This was a parallel timeline from an unknown story, so I didn't know what happened or would.

But instead of dying, I was summoned, to save a war between a weaker and stronger nation. The weaker nation was Savaria, who performed a newly developed ritual from their dwindling mages to summon me.

But I wasn't here alone... There was another girl who seemed to have been reincarnated from a parallel world of ours. ...She was the saint.

I was truly reincarnated into a reincarnation novel...!
______
Art by YeeJ chan on Pixiv! (https://www.pixiv.net/en/artworks/68064091)