Jiang Si, a name without a past, a career that just wants to survive - opening locks, opening space cracks that can eat people. The key is forged in blood, the money to buy the road is life, and the price is soul.
With a key, she broke through the wasteland, the mine, the black market and the giant city. Along the way, she robbed fires, robbed rails, killed people, and paid off debts. From the space nightmare to the gate of eternal life, from the wasteland to the giant city, from the debtor to the debt collector. She doesn't believe in eternal life, she only believes in price: if the price is high, life will be hard; if the price is low, life will be broken.
This is a world with no retreat, and every turn of the key is a big gamble. Jiang Si won the bet, but was still at the gambling table - because her life was the last key.
