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!
Kojirase Cherry
A blow job from his best friend gives one man a lifelong fetish: he wants to come on someone's face. And lucky him, he's reunited with that best friend who is now an adult and really, really good at blowing people!
Love Is Blind
A man with a longtime crush on his blind childhood friend-slash-roommate thinks he'll hide it forever, but his love is discovered thanks to his roommate's excellent hearing.
Sukitte Iwasete?
Shun grew up alongside his twin neighbors and has his heart broken when the one he loves, Eiji, says he doesn't want to see him anymore. Includes a funny cop x yakuza AU of itself.
Itoshi No Momonga Kareshi
A boy with a love for flying squirrels hits the jackpot when his crush and his pet squirrel are merged into one being thanks to a clumsy shrine worker.
Suzume Favorite
A boy with no friends saves and befriends a bird called Suzume that continues to visit him as he grows up. Then one day, a mysterious boy appears who shares some of Suzume's features - even his name. Could he be Suzume in human form? (Yes, yes, he could.)
Fuyushirazu no Koi
A boy sees his mother cry for the second time when she catches him about to kiss his sleeping cousin, who often crawls through his window to borrow his air conditioning. This is a gentle story about mutual love, and there is the thread of a story about parental acceptance. In the end, the mother reminds them to use a blanket in the cooling weather, indicating she knows they're going to sleep together - and while this doesn't indicate approval, per se, it shows her acceptance. While it was sweet of the scanlation team to take the effort, they duplicated many pages in this with colorized versions, which are distracting to some readers. Head's up if that bugs you.
It Can't Be Mutual Love!!
When his best friend and one-sided love of twenty-five years gets a divorce, Tokizou reluctantly takes him in. But what he doesn't know is that Ryuuji has been aware of his feelings for twenty-three of those years and has finally decided he can reciprocate.
Shiranu Wa Omae Bakari
Sex friends fall in love (my favorite). After a cruel rejection, a man accepts his childhood friend as his lover. A guy and his musician neighbor start dating.
Me o Tojite 3-Byou