I don’t think it was ever mentioned if i remember that he was “dumb” like definitely unmotivated and hates studying yes but with his parent’s genes, i mean look at his sister; girl is a genius. i think he always had the capacity to learn, he just didn’t want to. So i think it makes sense that he passed it when he put effort into studying. Like boy isn’t dumb he is just passionately unmotivated
So the plot is.. the middle age man (uke) hides his sexuality and the younger seme; ukes coworker wants to do him just once to prove that the uke is gay. He is very vocal about it to one of his coworker. The they do it while drunk i think. And then the younger seme slowly realizes that he has fallen in love but then the uke kind of rejects him cuz he still isn’t comfortable on opening up.
Please help me find this manga of anyone knows the title
When are new chapters coming