The title of the story should be: "I Died And Play Around With Prostitutes". But for something with a lot of lewdness, there's a suspicious lack of graphic hotness.
@mako That was a flash-forward; or you could consider chapters 2-8+ a flashback. He also has the tree and caterpillar in chapter 1. The last 7 chapters have been part of showing how he gets to that point.
This is better off as a full blown hentai; trying to pass it off as a regular manga is just ridiculous. It's a low level isekai Ane Naru Mono, only difference is Ane Naru Mono succeeded in both areas whereas this failed in the only one it attempted.