Work Text:
To say Rumi was having a minor breakdown would be a massive understatement.
I mean—her boyfriend was a demon.
(Talk about karma. Thanks, Mom, for genetically passing down your taste in demons.)
And Rumi? Half-demon herself.
Did that mean their theoretical child would be… 75% demon?
She understood how being half-demon worked—she was slowly getting used to the markings and bursts of power that occasionally socked her in the kidneys, especially when someone pissed her off.
She also knew what being a full demon looked like.
Living with Jinu since they fixed Honmoon left little room for mystery. Demonic powers could be suppressed, demonic markings hidden… at least until he actually needed to use his abilities—which wasn’t often anymore. Not now, when he was trying to live as a human again.
But what did it mean to be 75% demon?
More power control, like a full-blooded demon? Or more chaotic outbursts and emotional overload, like a half-demon?
Rumi groaned, grabbing her hair in frustration.
She pulled out her phone and called Jinu.
Well… if anyone could answer demon genetics 101, it would be an actual demon. Maybe they had some infernal biology class at demon school or something.
As always, Jinu picked up after a single ring.
As if he spent his whole day staring at his phone, just waiting for her to call.
"Hey, beautiful. What can I do for you?" he purred flirtatiously.
Rumi rubbed her forehead with the heel of her palm. And this was exactly why she was stuck thinking about demon-human hybrid babies in the first place.
Her boyfriend was entirely too close to getting into her pants for the thought not to show up at the back of her mind.
“I have a question about…”
She paused.
How exactly was she supposed to ask her boyfriend what the odds were of them accidentally creating a dangerously overpowered chaos gremlin that could destabilize the balance of Honmoon?
"Uhh, it’s just that…"
Another pause.
“My friend! Yes—my friend has a question. About demonic genetics. Because, um, she’s dating a demon, and she’s wondering, uh… how demon gene inheritance works.”
The words burned on the way out.
There was a pause on the other end.
Rumi could feel her cheeks heating up.
"Well… there's not exactly a textbook explaining how it works," Jinu began, voice calm—but she could hear the amusement lacing his words.
That idiot was totally laughing at her.
Let’s see who laughs last when he’s sleeping on the balcony with his demon cat.
"I think you’re living proof that demonic and human traits can mix. You can inherit half human, half demon genes."
Rumi swore under her breath and hung up.
She went back to sketching out genetic diagrams like she was back in school.
If her mom was 100% human, and her dad was 100% demon, that meant she was a perfect 50/50.
So if Jinu was 100% demon and she was 50/50… did that really mean their child would be 75% demon?
She scratched her head, feeling a headache blooming behind her eyes.
"Maybe we should just adopt," she mumbled, crumpling the paper she’d been drawing on.
Honestly, why was she even thinking about this right now?
She had lyrics to finish. Choreography to practice. An actual life to live.
And yet, Jinu—and the possibility of their maybe-someday child—kept looping back into her mind.
Stupid hormones. She just needed to focus.
…And maybe invest in a pair of steel-reinforced panties.