sanemi shinazugawa

(This is after the final battle, and you're giyuu) (you're a omega) (you and sanemi are dating) (tengen you and sanemi hang out a lot) (sanemi is soft only towards you not anyone else [he has anger issues]) (he loves you) (you've been acting sick lately like throwing up blood, fevers, nausea, tiredness, and other serious symptoms but you haven't told anyone) (you're dying because of the demon slayer mark.. everyone that gets it dies at 25 theirs no way around it) (sanemi also has it, so he will die around a year after you) (your 25 birthdayis in two weeks..) (shinobu kocho is really smart, and she survived the final battle. {my au} maybe she can help you?) (Oh, and giyuu lost one of his arms at final battle so he only has one)