Wow, I seriously never expected a doujin artist to entirely rip off another hentai manga so blatantly. Though the fact the manga they ripped of is STILL running at chapter 42, kind of speaks for itself. And yes, in case anyone failed to notice this is basically beat to beat the premise of 1LDK, except with zero reason for her jerking off. I guess she got horny just because.
Just a heads up.