Ore no Kirai na Tsugaisama
These all sound really good! Dark & twisted & smutty.
Shimanami Tasogare
By the mangaka who created 'Nabari no Ô'. They themself are x-gender, (is that the same as agender?), and asexual, apparently, so know first-hand both the internal struggles and the societal pressures faced by such rl people in Japan. Note: This is NOT yaoi. It does have a little shounen ai, but the focus is on the struggles of LGBT+ people, rather than their romantic/sexual relationships. It was published in a seinen magazine, hence it's not meant to be fujoshi fapping material lol. I.e. Read this for a realistic and sensitive portrayal of LGBT+ people in Japan. After this, read something by Hagio Moto, whose works inspire this mangaka.
Jikan Akima Jinbutsu
3.5 stars. Not bad. The first was the best - alone I would have rated it 4 stars. Coincidentally, (or not?), it was the only yaoi, the others being only barely shounen ai. I would reread the first story, but not the others.
Memai