As the tags states that it is a comedy, the hentai tag should very much be on that list as well for how absurd it is.
To quickly go over all the categories (for that it has been some time since I read this story), it follows our less appealing hentai tags. An immature, barely of legal age (17) boy who is excessively horny and as a way to have sex with usually older woman, he would black mail them, seduce them and or do favors for them that often result in sex as payment. This is majority of the plot, the characters are nothing
special of themselves (if not maybe off putting) and our art is that of traditional 80s/90s (hentai) style.
What makes this story memorable and I still recommend a read is the comedy of it. Given you are able to overpass some of the raunchy 'comedy' for that it has not obviously aged well, the story is quite funny if taken with a grain of salt. My most favorite memory of this story was them going to a Michael Jackson concert and Michael is speaking to 'us'. There is a lot of other funny scenes that kept me hooked, however the Michael Jackson concert at the very end left me in tears, which resulted in this being one of my favorite hentai's for comedic purposes only.