1. Kiyoomi is very good with kids and he loves kids and atsumu on the other hand is horrible with kids
2. Atsumu is bisexual and his bi awakening was aran back in middle school and kiyoomi is gay his gay awakening was atsumu during the inariziki vs itychiyama match in there 1st year but bi awakening was in middle school and it was ushijima
3. Kiyoomi confessed to atsumu by doing a lyric "prank" the song was this "this side of paradise ".
4. Atsumu has always been a hygienic person and he just had to take a few more precautions when he started dating kiyoomi.
5. Atsumu is shit at cooking so after a incident he wasnt allowed to cook anymore kiyoomi makes the food.
6. When sakuatsu moved in together the worte "miya kiyoomi + sakusa atsumu" on their wall as a promise that they would one day get married.
7. Atsumu took sakusa's last name after marriage.
8.Osamu,Rintaro,kiyoomi and Atsumu call themselves the miya four even though atsumu and kiyoomis last name is sakusa, they like to fuck with people that way.9. Kiyoomi has TERRIBLE handwriting and atsumu has perfect handwriting.
10. Kiyoomi doesn't have a extreme case of mysophobia but its still there. Atsumu has monophobia
11. Kiyoomis college friends didnt believe him when said he was dating atsumu who was a pro volleyball player and kiyo didn't give a fuck but they found out when atsu came to surprise kiyoomi everyone was shocked when the two men kissed.
12. Kiyoomi is POSSESSIVE af in his words "i dont like to share whats mine."
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Sakuatsu headcanons
Hayran KurguIm pretty bad at descriptions but these are some headcanons I can imagine with our favourite jerks so enjoy