My Left Hand Is a Foodie

[No cp + heroine + Cthulhu + system] Shang Qi traveled through time and space into a world full of black mist. In this world, black mist can corrode living creatures and mutate them. Ordinary human blood extracts can slow down mutations, and mutant blood can awaken humans. In the seventh month when the black mist swept across, God took action and helped mankind re-establish a stronghold. Then ordinary people were trapped on the ground, giving their blood day after day. The awakened ones become mercenaries of God, entering the fog to obtain supplies and food. And she dressed as an ordinary person who had just died of anemia. Shang Qi had to resist when the staff came to draw blood again. Relying on the blood given by the system, her left hand became a famous "gourmet". Moldy brown bread? Have eaten! … In order to complete the system mission, clear this damn black fog, and return to modern society. She also had to become a mercenary. Because of this, the meal she eats with her left hand becomes more and more delicious...