The main story was a high school romance and was little more generic. I forget the actual set-up but the uke was kind of a more clueless character, who got with the high achieving, maybe even student president type. I remember it being the more wholesome story in the series.

It was revealed the uke was kinda dopey because he was raised by his two older brother, the oldest was super doting and cooked, the second oldest was very protective and strict.

There was a spin off involving the strict brother, in the original series they discover the strict brother goes to uni with the semes older brother, but he doesnt like him because he thinks hes a slut (which isnt even the case, hes wrong.) But the Not Slutty older brother of the seme, actually has a crush on the strict bro.

The spin off is there story, and it also involved a university professor who likes the not-slutty one (who I think is his T.A.) I think he even made-up the rumors to scare away the strict bro. I remember a scene where he actually covers his eyes so he cant see him.

There were other sequels and spin offs / one shots too, I think one involved some high school friends of the main couple. And I think I saw something hinted at a story for the oldest brother, but it wasnt translated yet. I remember the profile page here had a reading order, because it had a lot of entries.

The Warui Koto Shitai series by Sakuraga Mei ^.^

Thank you!