The story starts with a misunderstanding that is extended over more than the first 30 chapters. So far nothing new, classic dump couple plot. But unfortunately neither uke nor seme are particularly nice to each other. Seme forces himself on uke, harasses him, forces him to have sex (several times) even though uke says no (dib-con/rape). Seme promises about 100 times in different chapters to stop sexually harassing uke if he doesn't want to, but never keeps his promise. In addition, uke asks him at least not to hurt him, but unfortunately seme is not interested in that either and simply rams his dick into uke. And to cause even more problems, seme outed uke as gay at work in front of a friend and colleague. Uke, for his part, yells at seme all the time. The story had potential and could have been sweet, but seme doesn't respect uke's wishes at all and uke is a push over who (that's how it feels to me) lets himself be pushed into the relationship without real feelings because he has no relationship experience.
But to be fair, the art is very pretty.
The Professor's Double Life