THIS IS SO GOOD!
Wholesome and nice. So they get allergies when they experience love, they have medicines for it so that it won't show but it would somehow affect their lovelife since yanno, it prevents them to feel love.
1st couple are childhood friends. Seme got the allergy because of uke, he just didnt remember much but later on will. Uke loved seme even when they were still kids ehe.
2nd couple. Seme likes uke, he tries hard to make uke fall in love with him. Uke hard to get yeah, maybe a sad past? Idk. I think there was a chapter when it said that because those with allergies can't hide the fact that they are inlove yada yada~
Dear Signal