I'll echo the suggestion that you check out Godspeed.

[quote=@KabenSaal]
the large number of Djinn-touched souls mingled inside her and condensed into a Djinn of great power, making the woman host a Demi-God.
[@BBeast]
[/quote]

The big plot hole here is that djinn do not have souls. It's been so long that I had almost forgotten about what Capy just said (excessive use of the Winds of Change can lead to one starting to lose their body and APPEAR as a djinni) but the caveat is that said mortals don't actually become djinn. They become something halfway between, a sort of immortal human attuned to magic that is nonetheless still not so powerful as a djinni lord, incapable of 'dying' and then reforming once more, etc.