I saw a bunch of people confused about what happened on reaper's website, so here's an explaination. Essentially, Ha Seeha is one of the greatest snipers around. In a freak ammunition accident, he gets intense nerve damage, almost losing his ability to walk entirely, and he has no way to pay for the 1.8 Million USD to fix it. One day, while he's on a treadmill, he collapses. What follows is either a visualization of him dying, or just his legs dying. The "devil" makes a deal with him, and pulls him back into real life. Since the devil doesn't make him able to walk immediately, I'm entirely assuming that the little cousin and Seeha's aunt were actually able to buy the VR capsule via supernatural interference. In exchange for his "legs" back, the devil now owns 1 bullet that he fires. It's not exactly clear whether this is in-game, or IRL, but I'm assuming it's real life. This basically means that the devil can interfere with wherever the 7th bullet he fires hits. The last few sentences and stuff are just the devil talking to herself about stuff, I think it's pretty self-explanatory. In all fairness, though, Seeha didn't necessarily agree to the terms and conditions of the Devil's contract, so maybe he could just pull a technicality and get off scott-free. I'm assuming not though.