If you're looking for manga similar to Kyoufu Manga Tanpenshuu: Kodoku, you might like these titles.
A cloaked, shadowy and mysterious figure hears noises from an alley one night, and goes to investigate. There, he finds a beautiful winged being with her arm stuck in a hole, being gnawed on from the inside. And so, he does the only logical thing...
A selection of 12 works from the periodic indie comics(manga) anthology “Popocomi”, published by Popotame Book Gallery.
My name is Jesuido Namazuko. I sing every night at The Pool Of Blood, a pub frequented by disgusting demons after work. One day I was about to fall victim to their weapons when, just as I thought my time, the time of my death, had come, I suddenly started singing a song that I liked. I touched the strings of their hearts and, for this reason, they spared my life. Thus I became the singer of the riverbed.