A real question is what photos are real, if any. I kinda bet all of them are, since imo the author doesn't show that much of a multi-layered storytelling skills. This is already better than Bastard and on par with his main work, Sweet Home.
But maybe I'm wrong, heh.
P.S. It's 'better' in relation to his other works. The title itself is your average 5/10 webtoon: some nice art, cardboard characters, and depth of a flower pot =/
Still reading it tho