There was no "real" at all. Since the beginning theres was only one. The character who Kim Soo Hyun portrayed…
The title of the movie |REAL| was kinda ironic if you think that, the reality was relative, in heroes minds. Each of them thought that, their reality was the REAL one and that, was the point of the movie.
P.S. The movie by itself had a lot of problems with the plot even if the idea was good. There was a strong element of surrealism in it.
so was the "real" one, the one with the tattoos originally or the other? was the "real" one,…
There was no "real" at all. Since the beginning theres was only one. The character who Kim Soo Hyun portrayed suffered from multiple personality disorder.
P.S. The movie by itself had a lot of problems with the plot even if the idea was good. There was a strong element of surrealism in it.