Hey there, been looking for a yaoi manga/doujinshi for forever. It used to be on DaTorrents but they eradicated the gallery which contained the doujinshi. In this specific doujinshi a young man (wearing a robe, most likely a kimono and a fundoshi) is being imprisoned in a cage by a large giant-looking man who has a box/paper bag head with a giant smile across it. The giant dominates the young man in the cage by picking at him with a stick/ruler until the young man is sexually aroused. Then the giant also becomes aroused and takes out his giant penis and they start screwing around. Then it starts to get into bestiality when the giant/demon grabs a fish and uses it as a sex toy to give the young man a blowjob while he is getting screwed. That's all I can remember about it. Any help would be very much appreciated!