SUMMARY: Eri and her husband Yuuji are the protagonist young couple. Thought they love each other, during the last 3 years their marriage has fallen into the habitual sexless routine.

One night after going drinking with his colleague Satoru, both of them come home quite drunk. Satoru starts molesting Eri, but then her husband wakes up. The next day Yuuji invites Satoru for dinner, and because of his polite attitude Eri attributes what happened the previous night to his drunkenness.

However, Satoru starts molesting her again, this time full aware that the husband is awake and on the same room. The situation scalates that night after Yuuji fall asleep again...

**********

First part, with a second on its way. There's no explicit confirmation but between details like the dvds on the closet and that gaze at the end from the husband, I'm inclined to say that this may actually be netorase.

http://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_188104/

Looks like it's staged.

Base +20