I'm looking for a specific doujin I read a while ago on ex/e-hentai, which I unfortunately neglected to favorite.
Essentially its this delivery guy with earth-knowledge who wakes up on a paradise island with plentiful food and perfect temperature and the naked human inhabitants spend their time doing nothing but relaxing or freely having sex with anyone.
The guy who wakes up takes a liking to a particular girl and becomes jealous when she has sex with another inhabitant, killing said inhabitant and eventually seizing control of the entire social structure.
If I could get a name or link it would be great.
polite bump