It was part of a collection of one shots but I remember the first story was about a demon or smth that eats the dudes dreams every night. He's also the neighbour. The artstyle was really funky.
I think there was also another story where one guy would step on the other with their taylored shoes.
http://www.mangago.me/read-manga/datte_oishii_no_ga_warui/ love this collection!
Ya think we might get to see some penetrative action after the series ends?
Maybe a cheeky peepee based extra or smth