Hey wait pls explain more of your ideas on a mage x non mage being functionally infertile im so interested
This is an extension on Dragon Age lore! Elves and Humans are able to have children together ("Elf-blooded", which Alistair actually is.) Elf-blooded offspring are functionally Human; in order to make viable offspring cross-species, Elven magic completely represses the Elven genome.
In AMYU, I tweaked this for story drama reasons-- the people with enough magic to make this happen are Elven mages. Ambient Elven magic is generally speaking not enough to reproduce with a Human. Weak mages can make it work, but not so much non-mages.
From the start, Isolde is fully aware (based on interactions with Alienage prostitutes) that she and Emmrich will never be able to have children. Early on, when she figures that Emmrich will be moving on quickly, it doesn't matter much. But later, when she realizes she can actually keep him...
But there's a twist to this lore modification!!! It is possible, in exceptionally rare cases, to produce a Human-blooded child: a sufficiently powerful Human mage has a very slim chance of successfully reproducing with an Elf by the same genome-suppression trick. While Elf-blooded children are common enough that they're general knowledge, Human-blooded ones are so rare that few people know about them.
Except that Emmrich and Isolde get very lucky.
When Isolde first realizes she's pregnant, about six weeks in, she knows that she can't tell Emmrich. She can't let him get attached to this little life that they won't get to keep.
But nine weeks in-- exhausted and periodically nauseous but trying so hard to hide it-- she goes and takes a midday nap. When Emmrich comes to wake her, nuzzling up to her, she flinches-- her breasts are too tender.
Realization dawns in his eyes, and he tells her she may be pregnant.
She panics-- "No!"
"You weren’t supposed to know yet. I’m only going to lose it," Isolde says, in a small, upset voice. "The thought of you getting so excited, only to…" Emmrich places a warm, tender hand on her belly. "I will love it for however long it is with us, whether a day or a lifetime," Emmrich says.
But she doesn't lose it. Against all odds, their child grows.
At some point-- right around the time that the baby starts moving in ways Emmrich can feel-- Emmrich realizes that it has a spark of magic.
A spark of magic that feels just. like. his.
Their firstborn-- and ironically, their youngest, given the children they adopt later-- is their one and only biological child. When she's born, a species-healthy 2kg/5.5lb, Emmrich weeps for an hour straight.
Of course, the thing that I was ACTUALLY saying "i shan't talk about" was that in Emmrich x Isolde x Bellara, Emmrich spends a significant amount of time dating Isolde first, in which he gets very used to being able to come inside her. Remembering with Bellara is an adjustment, at first.
... also enables a very kinky scenario where he starts with Bellara and finishes in Isolde 🥴














