https://www.dlsite.com/maniax/work/=/product_id/RJ353040.html
https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_213353

Hopefully there will be someone to explain the story, I'm curious about the blone hair girl at the end.

Base +6

TLDR recently married MH Onno moved to her new house with her husband and one of her neighbors is MC's friend who just so happens to be her former sex friend who also just happens to have material to blackmail her with then it develops as usual ntr blackmail plot behind husband's back.
The little twist at the end is that the end is that husband seems to not be a cuck but an S who comments how even a strong willed woman can be turned into a masochist meat toilet, all this is told to a new character Miyu. Who is this meat toilet?
I'll laugh my ass off if that turns to be the other guy's sister or even his own wife lmao.

Base +18, your_name +6, opodin +7, Northland +9, reduzume +6, Pachris -9

wait so is he oblivious to that applying to his own wife or does he know and not care?

Base +7