A few years after marrying.
The protagonist Kana is stuck in a dead relationship with a man her parents ordered her to marry.
As Kana is rather frigid, and not so good at sex, her husband is cheating on her with a woman at work.
In a sexual relationship with another woman, he thus hardly ever comes home.
Meek and lacking self-esteem, Kana spends her days alone without making even the smallest complaint.

While that is all quite horrid, there is one solace in her life that she looks forward to. And that is...
uploading selfies to her secret account "Kanya" and getting some "Likes" every now and then.
With such a low sense of self worth, the feeling of acknowledgement is so addictive
that she is unable to stop herself from publicly posting her selfies.

Then one day her follower number sudenly went from a few to many.
It would seem this was due to a super popular secret account "Hayato" with hundreds of thousands of followers having shared her posts.
Kana is perplexed, and then her doorbell rings. Whoever could it be? Hardly anyone ever rings?
Upon checking, she is confronted by a flashy woman.
The woman driven made with fury grabs Kana while repeatedly screaming "Hayato."
With not a clue as to what is happening, Kana is then saved by one of her male neighbors.

He takes the woman away, and then comes back once more to apologize to Kana.
As the man speaks to her candidly, Kana lets him inside and they have a great chat, but...
He is well aware that she is "Kanya."
And he then reveals that he is "Hayato."

The two gradually become closer... and finally Hayato reaches out to touch Kana's body...
A body which has been without the touch of a man for several years----

Since that day... the day they started a physical relationship...
Secret social media account Hayato, and secret social media account Kanya's
lust stained days of carnal indulgence begin...