@Levenstein MC gets an ability to transform into any women he sees an image of. You can see it on page 5 where he tests it out. Magazine, TV, etc. Then uses said power for prostitution.
Ch1 and 2 are just the MC having sex with the client's girl of choice in exchange for cash since he can transform into anyone.
Chapter 3 is the MC meeting another guy who can transform as well, but is more powerful since he can morph his clothes. MC confronts the other guy, "What do you want?" "Doppelganger SEX" the other guy says.