@GODsHandOnEarth She doesn't cheat on her husband, the only unsatisfying detail is he doesn't end up with Miyako, but I don't wanna spoil so let's wait for the realease.
I've seen the preview too... Honestly for me it's most important that the story ends with a happy end for him. He really loves Chika but she only sees him as some kind of sex toy and even got engaged, so I can't really see how this won't end with her cheating on her fiance/husband with him and him staying unhappy... But the sequel is really one of the chapters I wait the most this month!
She wants to keep him as her little sex pet while she continues to crush his poor heart which makes him unable to have a normal relationship with someone else which in return ensaves that he stays her sex pet...
Man, that ending...he didn't even want to answer her call.
I feel a little bad for him, to be honest, and I kind of wonder how things will go from now on. Makes me almost wish there is a sequel that can shed a bit of light on it, but even if it ends like this, it was still a really great release.