Eroge Sekai ni Tensei Shita Ore ga, Oshi e no Ai de Netorare Heroine wo Shiawase ni suru.

i dont see why this isnt just a hentai doujin authors shouldnt waste everyones time

https://forums.mangadex.org/threads/eroge-sekai-ni-tensei-shita-ore-ga-oshi-e-no-ai-de-netorare-heroine-o-shiawase-ni-suru-ch-1.1855309/post-22520584

I will warn you. This is a NTR doujinshi in manga form. The description (or the lack of it here) misleads you in what really happens. As right now only 20 chaps are out and I can say where the story theme is and whats its going. But context is needed:

• MC receives a dating sim game as a gift and becomes enamored with it, especially with the FMC.
• Shockingly he finds out it's an NTR game as his dream girls gets cucked infront of his screen, shattering his lil heart and leaving him sleepless.
• Desperate to avoid the NTR as he looks for guide on the internent on his phone, he neglects his surroundings and meets a tragic end by train.
• Surprise! He's isekai'd into the same NTR dating game.

And so the story begins with the MC vowing to prevent the NTR scenario and to protect the FMC. However a distinct trend emerges chapter after chapter, where:

• MC continues to be a Beta Cuck as his personality protrays it through the whole story.
• Douche is your typical Douche you see in every NTR hentai.
• MC tries to thwart the Douche but is always outsmarted due to plot conveniences.
• Douche Fucks every girl one after another as MC just watches it helplessly unfold (School mates, Teachers, Milfs)
• They all fall for him

So far it's clear that the story operates under the premise that everything is "okay" as long as the FMC remains untouched. Howeve there are frequent flashbacks showing her fucking with the douche or MC dreams where she's with him. I would only recommand this trash for cuckolds.