Nure Nezumi-tachi no Koi
After his heart is broken by the school nurse, a boy falls in love with his openly gay classmate. Moves quickly but interesting. Surprisingly happy ending.
Boku wa Kimi no Tori ni Naritai
15yo Kei is in love with his older sister's boyfriend. A fairly short story about complicated love.
Nandaka Ii Nioi
Two stories: teachers who date and one has a scent fetish, and neighbors who have been friends since childhood. One visited the other often because he was too sick to go out. Now that he's relatively healthy, he works full-time while the other is still in high school. Because they'd known each other for so many years, the age gap didn't bug me too much, but I think it was probably 16 - 21-ish? Maybe older?
Kirei ni Shiteyo
A lonely boy who hides behind the mask of a delinquent befriends the school janitor, a man who keeps to himself after being betrayed by someone he'd considered a friend.
Ayashi no Hakoniwa ni Ukabu Tsuki
This author wanted to draw demon x human porn and has a thing for teacher x student. If you don't care about relationship or character development, world building, or an actual story, this might be one for you. The premise - a disgraced teacher flees to a remote school that is home to supernatural students and is marked by one on arrival - is great. But sadly it's a superficial story so not one I will reread. Oct 2023: raised this by one star because it is by remnant’s author, I did appreciate how much self-loathing the demon had, and how excepting the partner was of his true form.
Mede Shireru Yoru No Junjou
When his family's business goes under, young Kagerou is sold to a brothel in the red light district. He befriends another boy and fellow worker, Kichou, and they vow to one day leave the district together. But when they come of age and are sold to customers, their forbidden relationship turns bitter. Ten years later, they vie for the spot of top courtesan and hide their feelings behind pettiness, until a string of suspicious crimes leads Kichou to discover his true identity, and Kagerou has to prepare to give him up entirely. This is beautiful but has the potential to be extremely upsetting. I read it almost a day ago and haven't been able to get it out of my head. Very happy ending in spite of everything that happens!
Kaihatsu Muramura Mode
A series of PWPs mostly involving high school and college students. The most developed is a boy with a mole on his cheek and the best friend who teases it's his "yes" button. There's also teacher/student (I skipped it) and stepbrothers in love.
Mousou One Room
Manga artist in love with his younger brother's friend gets the shock of his life when he shows up at his front door and asks to stay. Neighbors and childhood friends start dating.
Young Bad Education