simple but cute. two boys used to be classmates in high school, one was bullied for being "weird", the other was always nice to him. now they end up in the same university. one of them gets drunk and the other offers to take him home. they end up in a motel, one thing leads to another, they have sex. later it turns out both have had a crush on each other since high school. oh, and main chara apologized for not having stopped the drunk one when he made a move on him in the motel (important, actually), but his bae didn't seem to mind; moreover, he was not even that drunk in the first place, apparently. sly fox.
the art style is rather pretty and there's not much plot nor development, but it's still a nice read.
Introduction to the Theory of Love