You were supposed to deliver the cargo to the B3412, but instead ended up in the body of a young man in a dying world without oxygen called Oxless. The cargo is lost. The location of the acceptance point is unknown. The mission failed, barely having time to begin. Now your most valuable possessions are a feeding bracelet, a few oxygen stones and four hours of time. You can give up. Accept that past life has remained forever at a distance of a million light years. Quietly die in the queue for the issuance of crystals or give yourself to be torn apart by oxygen-sucking creatures in the wasteland. But you can act. Tear your hands into blood, stomp your soles and learn to hold your breath forever. You have to choose. But, before you make a choice... remember those who are waiting for you on Earth. The heartbeat is increased. The rest of the oxygen with moderate consumption is 4 hours.