Hishakaishindo
A musician's natural talent costs him chances at friendship, so he stops playing completely and walls himself off to the world, until a photographer befriends him on a rooftop. But once he falls in love, he runs away. Three years later, they're reunited when the photographer is hired to photograph his new band.
40 x 40 Chikuwa Kaigi
Twenty-two years after they fell in love in college, two 40-year-old chiefs are divorced by their wives and get a second chance.
Ake Nure Goyou ni Furu Yuki wa
A collection of beautiful, quiet, moving, melancholy stories. The most developed is a young tea master who saves a wounded member of the yakuza from dying; they have the first few and final chapter.
Yasashii Koi ga Sodatsu Made
A lonely country boy bonds with a computer technician over moss balls.
Koh-Boku
The gentle, sassy love story of an overworked government employee and his faithful subordinate.
Mukidashi no Koi
The one with the submerged elementary school and childhood friends getting back together over fireworks
Gravity Eyes
Surprisingly touching. Two men licking the wounds from past relationships come together when a professor agrees to adopt two kittens on the pretense that the student who had rescued them continue to care for them. Neither forgets the past, but they are able to move beyond. Sept 2020 ETA: Interesting twist on professor/student. Although they're from the same university, they're in different departments. Also their relationship is pretty open. The only reason I dock this a star is for the pacing. It moves a little quickly. This could've been twice as long to show Kiriya opening up more gradually, especially when his hand is broken. It strays to cliche at times: the apartment burning down to force living together, the jealous wife chasing out the MC for crushing on her husband, dual tragic backstories, kittens. But it's tossed together in a way that's satisfying.
Sono Suki Honto
Years after they dated for a month as a result of a punishment game, two men are reunited at work and have a chilly relationship. But after a welcome party, they decide to give dating another whirl.
Hitori to Hitori no 3650nichi
Two in one: Ten years after a rejected confession, two men get another chance...but the one feels so much guilt, he resorts to abusive sex as atonement. After college, a guy moves to the country and falls for the only person his age. The art in this is GORGEOUS. Also the author is an eruri shipper :-D
Meguro to Akino wa Kizukanai