Lewd and educative yaoi H doujin from Nanamatsu Kenji.
Scanlated by Tabunne Scans.
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raw: https://e-hentai.org/s/d4aec26953/944913-138
raw (full anthology): https://e-hentai.org/g/944913/fecb84f400/

Yes, "educative". XD lol That's an unusual word for a H doujin, right? XD
I found the raws of this more than a year ago, and it caught my eyes, so I saved the raws as a possible project, but then it got forgotten somehow. Found them the other time when looking through older raws I saved, and though to pick it up now.

It's a pretty short doujin, and not a lot happens in it in comparison to many other doujins. though I'm kinda happy with the focus on handjob, since I have a huge fetish for it, but, what it makes this doujin particularly unique and noteworthy is, I think it's "educative" aspect.

When talking to others about lewd things via the internet, or reading about things, or aquiring such knowledge by other means, you can sometimes learn things that are quite important, yet you didn't know about it before.
For example, when talked to some friends about that "I hate ruined orgasms" because I used to do it wrongly for quite some time and I learned it just later (via porn and the like) that I was doing it wrong, that friend said something like "now that you explained, I just realised I was doing it wrong too, until now" and there were other friends too, who said that.
And that made me wonder, there are things such as sex-ed, but there aren't much educative materials (or they're not so well known or obvious) about "how to masturbate" or such. I mean, when some already do it, it could be potencially very useful to teach useful stuff, such as "what's a ruined orgasm" or "various masturbation techniques to try" or such.

Of course, there's nothing like "one true way to masturbate", there are many ways to do it, and it really depends on the person, what way(s) they prefer to do it, etc. (and also kind of also depends on what they have down there).
It could been even better, if this senpai would taught that as well - a kind of, sort of "wisdom", like "there's more than one path leading to the orgasm..." or something XD lol (plus about other things too), but oh well, it's still a very interesting and unique doujin, IMO.

It also seems that the kouhai really enjoyed his senpai's technique, so, it's probably pretty much all good as it is.
(educative, indeed, if some readers feel curious as well, you might could try out the same technique too, if you didn't tried yet... XD lol ...it's pretty awesome... XD lol)

Ah, and, the afterword is a poem. I'm not sure how to interpret it, but whatever, it's interesting. XD

Anyway, a surprising amount of blabbering this time, right? But, I thought it would be interesting to note on these stuff, and why I found this doujin very interesting.
Hope you enjoy reading it~!

mucho texto^

Base +8, LeisureLarry +6, Letto Lettosa +6, somercet +12, Harvest13 +7

It probably will take longer for you to read the translator comment, than the entire doujinshi.

Base +16, rick-kun +6, Serendipitous Squirt +4, Quflow +7, LeisureLarry +6, Letto Lettosa +6, Hiltrax +7, 0gal +6, somercet +12, Harvest13 +7, logitech6700 +6