https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_732627/

Oriko-san 1 [Almost full remake + additional scenes]
Oriko-san 2-4 has 15 original pages

Orikou-san 1+2
https://e-hentai.org/g/3040410/1c022ad650/

Orikou-san 3
https://e-hentai.org/g/3249059/c2675c1db4/

Orikou-san 4
https://e-hentai.org/g/3482818/cf7accf040/

Insane multi-layered netorare series, where the guy who loses isn't even the official boyfriend being cheated on throughout all of this.

Basically the story is about Riko Osagawara, a girl who loves being cared for due developing some issues over her mother being quite cold to her, a very indifferent mom, Riko's stepdad though seems cherish her a lot despite not being blood related...

Anyway, Riko currently is dating her senpai Kitagawa, he has been giving Riko private lessons for years, and that of course developed into a sexual relationship, they have been on this kink for a while.

Hayashi from the soccer club, a very outgoing person, quite the carefree dude who's always up for some fun is Riko's classmate; Hayashi finds out about Riko and Kitagawa's secret "studies" and decides right then and there to take advantage of Riko, wanting to score her for himself, she gets into Hayashi's scheme as Riko has a very special kink where being cherished for soothes her to the nth degree, so her guilt over cheating on Kitagawa is overwhelmed by the "attention" Hayashi also gives her.

Then there's Mamoru, also from the soccer club, he knows Riko very well as they are childhood friends who live next to each other, knowing her even before Kitagawa came into her life, as children Mamoru and Riko shared this pure first love that unfortunately for Mamoru didn't bear much fruit, so they remained as just friends. However, when Hayashi gets more daring with his playtime with Riko, he ropes Mamoru onto this as well, as the more straight laced person Mamoru can't believe Riko is doing this kink with Hayashi, cheating on Kitagawa like that, but Mamoru has always loved Riko so he gives in to temptation, Hayashi plays him like a fiddle.

Then it all comes to light when Hayashi has Riko and Mamoru have their sexy time while blindfolded, Kitagawa appears, Riko's actual boyfriend who seemed to be the true losing party as his girl was being taken by two dudes from the soccer club with him being none the wiser, but nope, Kitagawa and Hayashi actually linked up, as Kitagawa takes Riko's blindfold off and she immediately prepares to desperately apologize Kitagawa cuts her, just praising her, calming her down, he doesn't seem mad all as he calmly reveals he knew what Riko was truly like before Hayashi even approached her...

Riko and her stepdad actually shared a forbidden relationship long ago, he wasn't a caring stepdad the common way, he groomed Riko into being his little girl sexually, Riko's extreme need for attention her mom didn't give her was fulfilled by the man her mom married, she trained to link cherishing with sex and Kitagawa found that out but kept it to himself as he was aroused by how Riko looked each time her stepdad touched her.

Now Kitagawa, Hayashi and Mamoru take Riko on a foursome, everyone is deeply immersed, Riko is loving all the attention, Hayashi is liking the fun, Kitagawa praises his girl for being good, but Mamoru is not in tune, dude actually has his limits and still hanged onto the pure memories he had of Riko as a child, he didn't want to be with Riko this way...

When it ends Kitagawa gets Hayashi's message saying how fucking awesome their foursome was, he is up for the next one but he got a girlfriend now so he will be taking a break for a while; Kitagawa then hopes he and Riko will continue their "studies" on college with "friends", he praises his good little girlfriend and she naturally says yes of course. Mamoru though, isn't very happy, he also received Hayashi's message but that is only a reminder the Riko he always loved isn't just for him, he hears Riko's loud moans next door, THE END

The Soushuuhen's extra pages after the end is of Riko being passed around by other guys, Kitagawa expanded the chat group with Hayashi, Mamoru and Riko into a full blown super chat to pass Riko around and fulfill Kitagawa's cuckold needs.

There's an extra appearance of Riko's friend Jun who's masturbating to these videos, noticing that looks like Riko but surely that can't be her nice and prim friend.

Then there's the extra extra pages, who are either just for fun or are canon too, dunno, first it is Hayashi finally getting to know Riko's mom, praising her beauty, she gets a little mad over being praised by kids but she is suddenly getting banged as well, cheating on her husband, and finally it is Riko being done by her stepdad, keeping up with their play.

Base +20, mjaking +6, Senpai SAP +6, Acerola +21, naming way +29, Asarta +6, molenewe +6

Thanks for the upload and the summary goukenimaru.

Base +8

NTRception

Btw there is a new manga called TS Reincarnated Beauty Netora Reiko Wants to Be NTR’d.

Base +23, Senpai SAP +6